diff --git a/changelog_unreleased/javascript/10813.md b/changelog_unreleased/javascript/10813.md
new file mode 100644
index 000000000..7fd23485e
--- /dev/null
+++ b/changelog_unreleased/javascript/10813.md
@@ -0,0 +1,18 @@
+#### Support async do expressions proposal (#10813 by @sosukesuzuki)
+
+https://github.com/tc39/proposal-async-do-expressions
+
+```js
+// Input
+const x = async do {
+  await requestAPI().json();
+};
+
+// Prettier stable
+SyntaxError: Unexpected token, expected ";" (1:17)
+
+// Prettier main
+const x = async do {
+  await requestAPI().json();
+};
+```
diff --git a/src/language-js/parser-babel.js b/src/language-js/parser-babel.js
index 34d942020..d91cc54eb 100644
--- a/src/language-js/parser-babel.js
+++ b/src/language-js/parser-babel.js
@@ -37,6 +37,7 @@ const parseOptions = {
     "decimal",
     "classStaticBlock",
     "moduleBlocks",
+    "asyncDoExpressions",
   ],
   tokens: true,
   ranges: true,
diff --git a/src/language-js/printer-estree.js b/src/language-js/printer-estree.js
index f30f93e04..00e5ea291 100644
--- a/src/language-js/printer-estree.js
+++ b/src/language-js/printer-estree.js
@@ -620,7 +620,7 @@ function printPathNoParens(path, options, print, args) {
       return parts;
     }
     case "DoExpression":
-      return ["do ", print("body")];
+      return [node.async ? "async " : "", "do ", print("body")];
     case "BreakStatement":
       parts.push("break");
 
diff --git a/tests/format/js/async-do-expressions/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/async-do-expressions/__snapshots__/jsfmt.spec.js.snap
new file mode 100644
index 000000000..1e44c20a3
--- /dev/null
+++ b/tests/format/js/async-do-expressions/__snapshots__/jsfmt.spec.js.snap
@@ -0,0 +1,87 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`async-do-expressions.js [espree] format 1`] = `
+"Unexpected token do (1:7)
+> 1 | async do {
+    |       ^
+  2 |   1;
+  3 | };
+  4 |"
+`;
+
+exports[`async-do-expressions.js [meriyah] format 1`] = `
+"[1:8]: Unexpected token: 'do' (1:8)
+> 1 | async do {
+    |        ^
+  2 |   1;
+  3 | };
+  4 |"
+`;
+
+exports[`async-do-expressions.js format 1`] = `
+====================================options=====================================
+parsers: ["babel"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+async do {
+  1;
+};
+
+(async do {});
+
+let x = async do {
+  if (foo()) { f() }
+  else if (bar()) { g() }
+  else { h() }
+};
+
+async do {
+  await 42
+}
+
+function iter() {
+  return async do {
+    return 1;
+  }
+};
+
+let x = async do {
+  let tmp = f();
+  tmp * tmp + 1
+};
+
+=====================================output=====================================
+(async do {
+  1;
+});
+
+(async do {});
+
+let x = async do {
+  if (foo()) {
+    f();
+  } else if (bar()) {
+    g();
+  } else {
+    h();
+  }
+};
+
+(async do {
+  await 42;
+});
+
+function iter() {
+  return async do {
+    return 1;
+  };
+}
+
+let x = async do {
+  let tmp = f();
+  tmp * tmp + 1;
+};
+
+================================================================================
+`;
diff --git a/tests/format/js/async-do-expressions/async-do-expressions.js b/tests/format/js/async-do-expressions/async-do-expressions.js
new file mode 100644
index 000000000..fbd33b898
--- /dev/null
+++ b/tests/format/js/async-do-expressions/async-do-expressions.js
@@ -0,0 +1,26 @@
+async do {
+  1;
+};
+
+(async do {});
+
+let x = async do {
+  if (foo()) { f() }
+  else if (bar()) { g() }
+  else { h() }
+};
+
+async do {
+  await 42
+}
+
+function iter() {
+  return async do {
+    return 1;
+  }
+};
+
+let x = async do {
+  let tmp = f();
+  tmp * tmp + 1
+};
diff --git a/tests/format/js/async-do-expressions/jsfmt.spec.js b/tests/format/js/async-do-expressions/jsfmt.spec.js
new file mode 100644
index 000000000..0fab4456d
--- /dev/null
+++ b/tests/format/js/async-do-expressions/jsfmt.spec.js
@@ -0,0 +1 @@
+run_spec(__dirname, ["babel"], { errors: { espree: true, meriyah: true } });
diff --git a/tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap b/tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap
index 919e06844..cf3b93fc4 100644
--- a/tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/format/js/babel-plugins/__snapshots__/jsfmt.spec.js.snap
@@ -1,5 +1,35 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`async-do-expressions.js [espree] format 1`] = `
+"Unexpected token do (1:7)
+> 1 | async do { await requestAPI().json() };
+    |       ^
+  2 |"
+`;
+
+exports[`async-do-expressions.js [meriyah] format 1`] = `
+"[1:8]: Unexpected token: 'do' (1:8)
+> 1 | async do { await requestAPI().json() };
+    |        ^
+  2 |"
+`;
+
+exports[`async-do-expressions.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "babel-ts", "babel-flow"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+async do { await requestAPI().json() };
+
+=====================================output=====================================
+(async do {
+  await requestAPI().json();
+});
+
+================================================================================
+`;
+
 exports[`async-generators.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "babel-ts", "babel-flow"]
diff --git a/tests/format/js/babel-plugins/async-do-expressions.js b/tests/format/js/babel-plugins/async-do-expressions.js
new file mode 100644
index 000000000..d6fdc93e1
--- /dev/null
+++ b/tests/format/js/babel-plugins/async-do-expressions.js
@@ -0,0 +1 @@
+async do { await requestAPI().json() };
diff --git a/tests/format/js/babel-plugins/jsfmt.spec.js b/tests/format/js/babel-plugins/jsfmt.spec.js
index c86bffb3f..87e4633cf 100644
--- a/tests/format/js/babel-plugins/jsfmt.spec.js
+++ b/tests/format/js/babel-plugins/jsfmt.spec.js
@@ -28,6 +28,7 @@ run_spec(__dirname, ["babel", "babel-ts", "babel-flow"], {
       "module-string-names.js",
       "class-static-block.js",
       "module-blocks.js",
+      "async-do-expressions.js",
     ],
     meriyah: [
       "decimal.js",
@@ -52,6 +53,7 @@ run_spec(__dirname, ["babel", "babel-ts", "babel-flow"], {
       "import-assertions-static.js",
       "module-string-names.js",
       "module-blocks.js",
+      "async-do-expressions.js",
     ],
   },
 });