diff --git a/solutions/go/isogram/1/isogram.go b/solutions/go/isogram/1/isogram.go
new file mode 100644
index 0000000..4d41c15
--- /dev/null
+++ b/solutions/go/isogram/1/isogram.go
@@ -0,0 +1,17 @@
+package isogram
+
+import "strings"
+
+func IsIsogram(word string) bool {
+	m := make(map[rune]struct{}, 26)
+	for _, r := range strings.ToLower(word) {
+		if r == ' ' || r == '-' {
+			continue
+		}
+		if _, ok := m[r]; ok {
+			return false
+		}
+		m[r] = struct{}{}
+	}
+	return true
+}