diff --git a/GO/three_sum.go b/GO/three_sum.go
new file mode 100644
index 00000000..44ea8576
--- /dev/null
+++ b/GO/three_sum.go
@@ -0,0 +1,42 @@
+package main
+
+import (
+	"fmt"
+	"sort"
+)
+
+func threeSum(nums []int) [][]int {
+	sort.Slice(nums, func(i, j int) bool {
+		return nums[i] < nums[j]
+	})
+
+	var result [][]int
+	seen := map[string]bool{}
+	for i := 0; i < len(nums); i++ {
+		target := -nums[i]
+		l := i + 1
+		r := len(nums) - 1
+		for l < r {
+			val := nums[l] + nums[r]
+			if val < target {
+				l++
+			} else if val > target {
+				r--
+			} else if val == target {
+				resStr := fmt.Sprintf("%d,%d,%d", nums[i], nums[l], nums[r])
+				if seen[resStr] {
+					l++
+					continue
+				}
+				result = append(result, []int{nums[i], nums[l], nums[r]})
+				seen[resStr] = true
+				l++
+			}
+		}
+	}
+	return result
+}
+
+func main() {
+	fmt.Println(threeSum([]int{-1, 0, 1, 2, -1, -4})) // output: [[-1,-1,2],[-1,0,1]]
+}