diff --git a/api-generator/components/datatable.js b/api-generator/components/datatable.js
index 9cf87e0af..5108bc7c5 100644
--- a/api-generator/components/datatable.js
+++ b/api-generator/components/datatable.js
@@ -7,7 +7,7 @@ const DataTableProps = [
     },
     {
         name: "dataKey",
-        type: "string",
+        type: "string|function",
         default: "null",
         description: "Name of the field that uniquely identifies the a record in the data."
     },
diff --git a/src/components/datatable/DataTable.d.ts b/src/components/datatable/DataTable.d.ts
index e44ec581e..36f291ce7 100755
--- a/src/components/datatable/DataTable.d.ts
+++ b/src/components/datatable/DataTable.d.ts
@@ -7,6 +7,8 @@ type DataTablePaginatorPositionType = 'top' | 'bottom' | 'both' | undefined;
 
 type DataTableSortFieldType = string | ((item: any) => string) | undefined;
 
+type DataTableDataKeyType = string | (() => string) | undefined;
+
 type DataTableMultiSortMetaType = DataTableSortMeta[] | undefined | null;
 
 type DataTableSortOrderType = 1 | 0 | -1 | undefined | null;
@@ -465,8 +467,9 @@ export interface DataTableProps {
     value?: any[] | undefined;
     /**
      * Name of the field that uniquely identifies the a record in the data.
+     * @see DataTableDataKeyType
      */
-    dataKey?: string | undefined;
+    dataKey?: DataTableDataKeyType;
     /**
      * Number of rows to display per page.
      */
diff --git a/src/components/datatable/DataTable.vue b/src/components/datatable/DataTable.vue
index abb7f78ad..5d1371a4d 100755
--- a/src/components/datatable/DataTable.vue
+++ b/src/components/datatable/DataTable.vue
@@ -93,7 +93,7 @@ export default {
             default: null
         },
         dataKey: {
-            type: String,
+            type: [String, Function],
             default: null
         },
         rows: {