diff --git a/src/Datasets.php b/src/Datasets.php
index e2009c86..26dc9cbc 100644
--- a/src/Datasets.php
+++ b/src/Datasets.php
@@ -74,12 +74,30 @@ final class Datasets
             $data = iterator_to_array($data);
         }
 
-        $namedData = [];
+        $dataSetDescriptions = [];
+        $dataSetValues       = [];
+
         foreach ($data as $values) {
             $values = is_array($values) ? $values : [$values];
 
-            $name             = $description . self::getDataSetDescription($values);
-            $namedData[$name] = $values;
+            $dataSetDescriptions[] = $description . self::getDataSetDescription($values);
+            $dataSetValues[]       = $values;
+        }
+
+        foreach (array_count_values($dataSetDescriptions) as $descriptionToCheck => $count) {
+            if ($count > 1) {
+                $index = 1;
+                foreach ($dataSetDescriptions as $i => $dataSetDescription) {
+                    if ($dataSetDescription === $descriptionToCheck) {
+                        $dataSetDescriptions[$i] .= sprintf(' #%d', $index++);
+                    }
+                }
+            }
+        }
+
+        $namedData = [];
+        foreach ($dataSetDescriptions as $i => $dataSetDescription) {
+            $namedData[$dataSetDescription] = $dataSetValues[$i];
         }
 
         return $namedData;
diff --git a/tests/.snapshots/success.txt b/tests/.snapshots/success.txt
index 3f9845ae..eae1f6cc 100644
--- a/tests/.snapshots/success.txt
+++ b/tests/.snapshots/success.txt
@@ -41,6 +41,13 @@
   ✓ eager wrapped registered datasets with (2)
   ✓ eager registered wrapped datasets did the job right
   ✓ lazy named datasets with (Bar Object (...))
+  ✓ it creates unique test case names with ('Name 1', Pest\Plugin Object (), true) #1
+  ✓ it creates unique test case names with ('Name 1', Pest\Plugin Object (), true) #2
+  ✓ it creates unique test case names with ('Name 1', Pest\Plugin Object (), false)
+  ✓ it creates unique test case names with ('Name 2', Pest\Plugin Object (), false)
+  ✓ it creates unique test case names with ('Name 2', Pest\Plugin Object (), true)
+  ✓ it creates unique test case names with ('Name 1', Pest\Plugin Object (), true) #3
+  ✓ it creates unique test case names - count
 
    WARN  Tests\Features\Depends
   ✓ first
@@ -156,3 +163,4 @@
 
   Tests:  1 warnings, 7 skipped, 85 passed
   Time:   2.65s
+
diff --git a/tests/Features/Datasets.php b/tests/Features/Datasets.php
index 688616c0..35764433 100644
--- a/tests/Features/Datasets.php
+++ b/tests/Features/Datasets.php
@@ -3,6 +3,7 @@
 use Pest\Datasets;
 use Pest\Exceptions\DatasetAlreadyExist;
 use Pest\Exceptions\DatasetDoesNotExist;
+use Pest\Plugin;
 
 it('throws exception if dataset does not exist', function () {
     $this->expectException(DatasetDoesNotExist::class);
@@ -106,3 +107,21 @@ $namedDatasets = [
 test('lazy named datasets', function ($text) use ($state, $datasets) {
     assertTrue(true);
 })->with($namedDatasets);
+
+$counter = 0;
+
+it('creates unique test case names', function (string $name, Plugin $plugin, bool $bool) use (&$counter) {
+    assertTrue(true);
+    $counter++;
+})->with([
+    ['Name 1', new Plugin(), true],
+    ['Name 1', new Plugin(), true],
+    ['Name 1', new Plugin(), false],
+    ['Name 2', new Plugin(), false],
+    ['Name 2', new Plugin(), true],
+    ['Name 1', new Plugin(), true],
+]);
+
+it('creates unique test case names - count', function () use (&$counter) {
+    assertEquals(6, $counter);
+});