diff --git a/src/material/autocomplete/autocomplete-trigger.ts b/src/material/autocomplete/autocomplete-trigger.ts
index dd032e9f6625..a2346b4df5c3 100644
--- a/src/material/autocomplete/autocomplete-trigger.ts
+++ b/src/material/autocomplete/autocomplete-trigger.ts
@@ -47,7 +47,7 @@ import {
 } from '@angular/material/core';
 import {MatFormField} from '@angular/material/form-field';
 import {defer, fromEvent, merge, Observable, of as observableOf, Subject, Subscription} from 'rxjs';
-import {delay, filter, map, switchMap, take, tap} from 'rxjs/operators';
+import {delay, filter, map, switchMap, take, tap, takeUntil} from 'rxjs/operators';
 
 import {MatAutocomplete} from './autocomplete';
 import {MatAutocompleteOrigin} from './autocomplete-origin';
@@ -116,7 +116,7 @@ export function getMatAutocompleteMissingPanelError(): Error {
     // Note: we use `focusin`, as opposed to `focus`, in order to open the panel
     // a little earlier. This avoids issues where IE delays the focusing of the input.
     '(focusin)': '_handleFocus()',
-    '(blur)': '_onTouched()',
+    '(blur)': '_handleBlur()',
     '(input)': '_handleInput($event)',
     '(keydown)': '_handleKeydown($event)',
   },
@@ -460,6 +460,16 @@ export class MatAutocompleteTrigger implements ControlValueAccessor, AfterViewIn
     }
   }
 
+  _handleBlur(): void {
+    if (this.panelOpen) {
+      this.autocomplete.closed
+          .pipe(take(1), takeUntil(this.autocomplete.opened.asObservable()))
+          .subscribe(() => this._onTouched());
+    } else {
+      this._onTouched();
+    }
+  }
+
   /**
    * In "auto" mode, the label will animate down as soon as focus is lost.
    * This causes the value to jump when selecting an option with the mouse.
diff --git a/src/material/autocomplete/autocomplete.spec.ts b/src/material/autocomplete/autocomplete.spec.ts
index 3f2e27c691d7..5496468d652e 100644
--- a/src/material/autocomplete/autocomplete.spec.ts
+++ b/src/material/autocomplete/autocomplete.spec.ts
@@ -814,15 +814,48 @@ describe('MatAutocomplete', () => {
       fixture.componentInstance.trigger.openPanel();
       fixture.detectChanges();
       expect(fixture.componentInstance.stateCtrl.touched)
-          .toBe(false, `Expected control to start out untouched.`);
+          .toBe(false, 'Expected control to start out untouched.');
 
       dispatchFakeEvent(input, 'blur');
       fixture.detectChanges();
+      fixture.componentInstance.trigger.closePanel();
+      fixture.detectChanges();
 
       expect(fixture.componentInstance.stateCtrl.touched)
-          .toBe(true, `Expected control to become touched on blur.`);
+          .toBe(true, 'Expected control to become touched on blur.');
     });
 
+    it('should mark the autocomplete control as touched on blur if the panel is closed', () => {
+      expect(fixture.componentInstance.stateCtrl.touched)
+          .toBe(false, 'Expected control to start out untouched.');
+
+      dispatchFakeEvent(input, 'blur');
+      fixture.detectChanges();
+
+      expect(fixture.componentInstance.stateCtrl.touched)
+          .toBe(true, 'Expected control to become touched on blur.');
+    });
+
+    it('should not mark the autocomplete control as touched if the input was blurred while ' +
+      'the panel is open', () => {
+        fixture.componentInstance.trigger.openPanel();
+        fixture.detectChanges();
+        expect(fixture.componentInstance.stateCtrl.touched)
+            .toBe(false, 'Expected control to start out untouched.');
+
+        dispatchFakeEvent(input, 'blur');
+        fixture.detectChanges();
+
+        expect(fixture.componentInstance.stateCtrl.touched)
+            .toBe(false, 'Expected control to remain untouched.');
+
+        fixture.componentInstance.trigger.closePanel();
+        fixture.detectChanges();
+
+        expect(fixture.componentInstance.stateCtrl.touched)
+            .toBe(true, 'Expected control to be touched once the panel is closed.');
+      });
+
     it('should disable the input when used with a value accessor and without `matInput`', () => {
       overlayContainer.ngOnDestroy();
       fixture.destroy();
diff --git a/tools/public_api_guard/material/autocomplete.d.ts b/tools/public_api_guard/material/autocomplete.d.ts
index 99e734c8d3e9..73512a887f83 100644
--- a/tools/public_api_guard/material/autocomplete.d.ts
+++ b/tools/public_api_guard/material/autocomplete.d.ts
@@ -82,6 +82,7 @@ export declare class MatAutocompleteTrigger implements ControlValueAccessor, Aft
     readonly panelOpen: boolean;
     position: 'auto' | 'above' | 'below';
     constructor(_element: ElementRef<HTMLInputElement>, _overlay: Overlay, _viewContainerRef: ViewContainerRef, _zone: NgZone, _changeDetectorRef: ChangeDetectorRef, scrollStrategy: any, _dir: Directionality, _formField: MatFormField, _document: any, _viewportRuler?: ViewportRuler | undefined);
+    _handleBlur(): void;
     _handleFocus(): void;
     _handleInput(event: KeyboardEvent): void;
     _handleKeydown(event: KeyboardEvent): void;