4 Schlüssel

{{Short description|1965 film}}

{{more citations needed|date=June 2019}}

{{Expand German|topic=culture|date=September 2011|4 Schlüssel}}

{{Infobox film

| name =4 Schlüssel

| image = 4 Schlüssel.jpg

| caption =

| director =Jürgen Roland

| producer =

| writer =Max Pierre Schaeffer (novel)

| narrator =

| starring ={{plainlist|

• Walter Rilla
• {{Interlanguage link multi|Günther Ungeheuer|de}}
• {{Interlanguage link multi|Monika Peitsch|de}}
• Hanns Lothar
• Hellmut Lange
• Joseph Offenbach
• Heinz Engelmann

}}

| music =

| cinematography =

| editing =

| distributor =

| released = {{Film date|1966}}

| runtime =

| country = West Germany

| language = German

| budget =

| gross =

}}

4 Schlüssel (English: The Four Keys) is a German crime film directed by Jürgen Roland. It was released in 1966.