diff --git a/Languages.md b/Languages.md
index 31a9cb0..8cf9c9b 100644
--- a/Languages.md
+++ b/Languages.md
@@ -20,3 +20,4 @@ Hello there!!
 - MATLAB
 - Scheme
 - Scala
+- Haskell
diff --git a/fibonacci_series/Haskell/haskell_fibonacci.hs b/fibonacci_series/Haskell/haskell_fibonacci.hs
new file mode 100644
index 0000000..b087de9
--- /dev/null
+++ b/fibonacci_series/Haskell/haskell_fibonacci.hs
@@ -0,0 +1,5 @@
+-- usage ghci haskell_fibonacci.hs
+-- then fib 5 for example
+fib 0 = 0
+fib 1 = 1
+fib n = fib (n-1) + fib (n-2)
\ No newline at end of file
diff --git a/fibonacci_series/Haskell/haskell_fibonacci_fast.hs b/fibonacci_series/Haskell/haskell_fibonacci_fast.hs
new file mode 100644
index 0000000..9f5d9b7
--- /dev/null
+++ b/fibonacci_series/Haskell/haskell_fibonacci_fast.hs
@@ -0,0 +1,9 @@
+-- usage ghci haskell_fibonacci_fast.hs
+-- then fib 5 for example
+fastfib _ _ 0 = 0
+fastfib _ _ 1 = 1
+fastfib _ _ 2 = 1
+fastfib fn1 fn2 3 = fn1 + fn2
+fastfib fn1 fn2 counter = fastfib (fn1 + fn2) fn1 (counter - 1)
+
+fib n = fastfib 1 1 n
\ No newline at end of file