diff --git a/CHANGELOG.unreleased.md b/CHANGELOG.unreleased.md
index efefa677..10b564ae 100644
--- a/CHANGELOG.unreleased.md
+++ b/CHANGELOG.unreleased.md
@@ -1082,6 +1082,35 @@ sometimes{{nogaps}}areimportant
 {{name}} is your name
 ```
 
+#### Angular: Add formatting for `i18n` attributes ([#6695] by [@voithos])
+
+Prettier will auto-wrap the contents of `i18n` attributes once they exceed the line length.
+
+<!-- prettier-ignore -->
+```html
+<!-- Input -->
+<h1 i18n="This is a very long internationalization description text, exceeding the configured print width">
+  Hello!
+</h1>
+
+<!-- Output (Prettier stable) -->
+<h1
+  i18n="This is a very long internationalization description text, exceeding the configured print width"
+>
+  Hello!
+</h1>
+
+<!-- Output (Prettier master) -->
+<h1
+  i18n="
+    This is a very long internationalization description text, exceeding the
+    configured print width
+  "
+>
+  Hello!
+</h1>
+```
+
 #### JavaScript: Break arrays of arrays/objects if each element has more than one element/property ([#6694] by [@sosukesuzuki])
 
 <!-- prettier-ignore -->
@@ -1177,6 +1206,7 @@ new Map([
 [#6646]: https://github.com/prettier/prettier/pull/6646
 [#6666]: https://github.com/prettier/prettier/pull/6666
 [#6673]: https://github.com/prettier/prettier/pull/6673
+[#6695]: https://github.com/prettier/prettier/pull/6695
 [#6694]: https://github.com/prettier/prettier/pull/6694
 [@brainkim]: https://github.com/brainkim
 [@duailibe]: https://github.com/duailibe
@@ -1194,3 +1224,4 @@ new Map([
 [@selvazhagan]: https://github.com/selvazhagan
 [@chadian]: https://github.com/chadian
 [@kaicataldo]: https://github.com/kaicataldo
+[@voithos]: https://github.com/voithos
diff --git a/src/language-html/printer-html.js b/src/language-html/printer-html.js
index 9a082ba4..ba073a41 100644
--- a/src/language-html/printer-html.js
+++ b/src/language-html/printer-html.js
@@ -1033,6 +1033,11 @@ function printEmbeddedAttributeValue(node, originalTextToDoc, options) {
      *     bindon-target="angularExpression"
      */
     const ngExpressionBindingPatterns = ["^\\[.+\\]$", "^bind(on)?-"];
+    /**
+     *     i18n="longDescription"
+     *     i18n-attr="longDescription"
+     */
+    const ngI18nPatterns = ["^i18n(-.+)?$"];
 
     if (isKeyMatched(ngStatementBindingPatterns)) {
       return printMaybeHug(ngTextToDoc(getValue(), { parser: "__ng_action" }));
@@ -1042,6 +1047,10 @@ function printEmbeddedAttributeValue(node, originalTextToDoc, options) {
       return printMaybeHug(ngTextToDoc(getValue(), { parser: "__ng_binding" }));
     }
 
+    if (isKeyMatched(ngI18nPatterns)) {
+      return printExpand(fill(getTextValueParts(node, getValue())));
+    }
+
     if (isKeyMatched(ngDirectiveBindingPatterns)) {
       return printMaybeHug(
         ngTextToDoc(getValue(), { parser: "__ng_directive" })
diff --git a/tests/html_angular/__snapshots__/jsfmt.spec.js.snap b/tests/html_angular/__snapshots__/jsfmt.spec.js.snap
index 94383d6d..c305f1f7 100644
--- a/tests/html_angular/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/html_angular/__snapshots__/jsfmt.spec.js.snap
@@ -182,6 +182,15 @@ printWidth: 80
           {{       valid       }} 
     
     baz'
+    i18n="Normal i18n text"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n-test="Attribute i18n text"
+    i18n-test="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted" i18n="This is yet another very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="@@customId"
+    i18n="Some description@@customIdWithDescription"
+    i18n="some meaning|Some description@@customIdWithDescription"
+    i18n="some meaning|Some very long internationalization description text exceeding the configured print width@@customIdWithDescription"
 ></div>
 
 =====================================output=====================================
@@ -308,6 +317,31 @@ printWidth: 80
           {{ valid }} 
     
     baz"
+  i18n="Normal i18n text"
+  i18n="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n-test="Attribute i18n text"
+  i18n-test="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n="
+    This is yet another very long internationalization description text,
+    exceeding the configured print width, but could easily be formatted
+  "
+  i18n="@@customId"
+  i18n="Some description@@customIdWithDescription"
+  i18n="some meaning|Some description@@customIdWithDescription"
+  i18n="
+    some meaning|Some very long internationalization description text exceeding
+    the configured print width@@customIdWithDescription
+  "
 ></div>
 
 ================================================================================
@@ -420,6 +454,15 @@ trailingComma: "es5"
           {{       valid       }} 
     
     baz'
+    i18n="Normal i18n text"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n-test="Attribute i18n text"
+    i18n-test="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted" i18n="This is yet another very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="@@customId"
+    i18n="Some description@@customIdWithDescription"
+    i18n="some meaning|Some description@@customIdWithDescription"
+    i18n="some meaning|Some very long internationalization description text exceeding the configured print width@@customIdWithDescription"
 ></div>
 
 =====================================output=====================================
@@ -546,6 +589,31 @@ trailingComma: "es5"
           {{ valid }} 
     
     baz"
+  i18n="Normal i18n text"
+  i18n="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n-test="Attribute i18n text"
+  i18n-test="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n="
+    This is yet another very long internationalization description text,
+    exceeding the configured print width, but could easily be formatted
+  "
+  i18n="@@customId"
+  i18n="Some description@@customIdWithDescription"
+  i18n="some meaning|Some description@@customIdWithDescription"
+  i18n="
+    some meaning|Some very long internationalization description text exceeding
+    the configured print width@@customIdWithDescription
+  "
 ></div>
 
 ================================================================================
@@ -657,6 +725,15 @@ printWidth: 1
           {{       valid       }} 
     
     baz'
+    i18n="Normal i18n text"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n-test="Attribute i18n text"
+    i18n-test="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted" i18n="This is yet another very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="@@customId"
+    i18n="Some description@@customIdWithDescription"
+    i18n="some meaning|Some description@@customIdWithDescription"
+    i18n="some meaning|Some very long internationalization description text exceeding the configured print width@@customIdWithDescription"
 ></div>
 
 =====================================output=====================================
@@ -1023,6 +1100,123 @@ printWidth: 1
   }} 
     
     baz"
+  i18n="
+    Normal
+    i18n
+    text
+  "
+  i18n="
+    This
+    is
+    a
+    very
+    long
+    internationalization
+    description
+    text,
+    exceeding
+    the
+    configured
+    print
+    width,
+    but
+    could
+    easily
+    be
+    formatted
+  "
+  i18n-test="
+    Attribute
+    i18n
+    text
+  "
+  i18n-test="
+    This
+    is
+    a
+    very
+    long
+    internationalization
+    description
+    text,
+    exceeding
+    the
+    configured
+    print
+    width,
+    but
+    could
+    easily
+    be
+    formatted
+  "
+  i18n="
+    This
+    is
+    a
+    very
+    long
+    internationalization
+    description
+    text,
+    exceeding
+    the
+    configured
+    print
+    width,
+    but
+    could
+    easily
+    be
+    formatted
+  "
+  i18n="
+    This
+    is
+    yet
+    another
+    very
+    long
+    internationalization
+    description
+    text,
+    exceeding
+    the
+    configured
+    print
+    width,
+    but
+    could
+    easily
+    be
+    formatted
+  "
+  i18n="
+    @@customId
+  "
+  i18n="
+    Some
+    description@@customIdWithDescription
+  "
+  i18n="
+    some
+    meaning|Some
+    description@@customIdWithDescription
+  "
+  i18n="
+    some
+    meaning|Some
+    very
+    long
+    internationalization
+    description
+    text
+    exceeding
+    the
+    configured
+    print
+    width@@customIdWithDescription
+  "
 ></div>
 
 ================================================================================
@@ -1135,6 +1329,15 @@ printWidth: 80
           {{       valid       }} 
     
     baz'
+    i18n="Normal i18n text"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n-test="Attribute i18n text"
+    i18n-test="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted" i18n="This is yet another very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="@@customId"
+    i18n="Some description@@customIdWithDescription"
+    i18n="some meaning|Some description@@customIdWithDescription"
+    i18n="some meaning|Some very long internationalization description text exceeding the configured print width@@customIdWithDescription"
 ></div>
 
 =====================================output=====================================
@@ -1261,6 +1464,31 @@ printWidth: 80
           {{ valid }} 
     
     baz"
+  i18n="Normal i18n text"
+  i18n="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n-test="Attribute i18n text"
+  i18n-test="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n="
+    This is yet another very long internationalization description text,
+    exceeding the configured print width, but could easily be formatted
+  "
+  i18n="@@customId"
+  i18n="Some description@@customIdWithDescription"
+  i18n="some meaning|Some description@@customIdWithDescription"
+  i18n="
+    some meaning|Some very long internationalization description text exceeding
+    the configured print width@@customIdWithDescription
+  "
 ></div>
 
 ================================================================================
@@ -1373,6 +1601,15 @@ printWidth: 80
           {{       valid       }} 
     
     baz'
+    i18n="Normal i18n text"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n-test="Attribute i18n text"
+    i18n-test="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted" i18n="This is yet another very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="@@customId"
+    i18n="Some description@@customIdWithDescription"
+    i18n="some meaning|Some description@@customIdWithDescription"
+    i18n="some meaning|Some very long internationalization description text exceeding the configured print width@@customIdWithDescription"
 ></div>
 
 =====================================output=====================================
@@ -1499,6 +1736,31 @@ printWidth: 80
           {{ valid }} 
     
     baz"
+  i18n="Normal i18n text"
+  i18n="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n-test="Attribute i18n text"
+  i18n-test="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n="
+    This is a very long internationalization description text, exceeding the
+    configured print width, but could easily be formatted
+  "
+  i18n="
+    This is yet another very long internationalization description text,
+    exceeding the configured print width, but could easily be formatted
+  "
+  i18n="@@customId"
+  i18n="Some description@@customIdWithDescription"
+  i18n="some meaning|Some description@@customIdWithDescription"
+  i18n="
+    some meaning|Some very long internationalization description text exceeding
+    the configured print width@@customIdWithDescription
+  "
 ></div>
 
 ================================================================================
diff --git a/tests/html_angular/attributes.component.html b/tests/html_angular/attributes.component.html
index 291533d0..1fa9c389 100644
--- a/tests/html_angular/attributes.component.html
+++ b/tests/html_angular/attributes.component.html
@@ -98,4 +98,13 @@
           {{       valid       }} 
     
     baz'
+    i18n="Normal i18n text"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n-test="Attribute i18n text"
+    i18n-test="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="This is a very long internationalization description text, exceeding the configured print width, but could easily be formatted" i18n="This is yet another very long internationalization description text, exceeding the configured print width, but could easily be formatted"
+    i18n="@@customId"
+    i18n="Some description@@customIdWithDescription"
+    i18n="some meaning|Some description@@customIdWithDescription"
+    i18n="some meaning|Some very long internationalization description text exceeding the configured print width@@customIdWithDescription"
 ></div>