diff --git a/changelogs/upcoming/7702.md b/changelogs/upcoming/7702.md
new file mode 100644
index 00000000000..d89537dcc24
--- /dev/null
+++ b/changelogs/upcoming/7702.md
@@ -0,0 +1 @@
+- Updated `EuiSearchBar` to allow the `@` special character in query string searches
diff --git a/src/components/search_bar/query/default_syntax.test.ts b/src/components/search_bar/query/default_syntax.test.ts
index 7311fdeb56e..1303b93a6e2 100644
--- a/src/components/search_bar/query/default_syntax.test.ts
+++ b/src/components/search_bar/query/default_syntax.test.ts
@@ -871,12 +871,12 @@ describe('defaultSyntax', () => {
     });
 
     test('special characters', () => {
-      const ast = defaultSyntax.parse('*_-:');
+      const ast = defaultSyntax.parse('*_-:@');
       const clauses = ast.getTermClauses();
       expect(clauses).toEqual([
         {
           type: 'term',
-          value: '*_-:',
+          value: '*_-:@',
           match: 'must',
         },
       ]);
diff --git a/src/components/search_bar/query/default_syntax.ts b/src/components/search_bar/query/default_syntax.ts
index 4679a53e222..fb1abda17fb 100644
--- a/src/components/search_bar/query/default_syntax.ts
+++ b/src/components/search_bar/query/default_syntax.ts
@@ -169,7 +169,7 @@ word
 
 wordChar
   = alnum
-  / [-_*:/]
+  / [-_*:/@]
   / escapedChar
   / extendedGlyph