diff --git a/csharp/46-Permutations.cs b/csharp/46-Permutations.cs
new file mode 100644
index 000000000..a885f91c2
--- /dev/null
+++ b/csharp/46-Permutations.cs
@@ -0,0 +1,26 @@
+public class Solution
+{
+    public IList<IList<int>> Permute(int[] nums)
+    {
+        var result = new List<IList<int>>();
+        PermuteRecurse(result, nums, 0);
+        return result;
+    }
+
+    private void PermuteRecurse(List<IList<int>> res, int[] arr, int start)
+    {
+        if (start == arr.Length)
+        {
+            var list = arr.Select(t => (t)).ToList();
+            res.Add(list);
+            return;
+        }
+
+        for (var i = start; i < arr.Length; i++)
+        {
+            (arr[start], arr[i]) = (arr[i], arr[start]);
+            PermuteRecurse(res, arr, start + 1);
+            (arr[start], arr[i]) = (arr[i], arr[start]);
+        }
+    }
+}
\ No newline at end of file