Louis V. Arco (born Lutz Altschul; 24 July 1899 – 3 April 1975) was an Austrian stage and film actor whose career began in the late 1910s.

Louis V. Arco was born in Baden, Austria-Hungary (now Austria), about 8 kilometers (5 miles) south of Vienna.

His first film was the German silent movie Lilly Humbrecht, der Leidensweg einer Stieftochter in 1922.

In 1941, Arco received a fairly good role in the Hal B. Wallis film Dr. Ehrlich's Magic Bullet starring Edward G. Robinson.

In 1942, Arco plays a Nazi radio censor who is ultimately sent to the Russian Front in Warner Bros.' anti-Nazi movie Berlin Correspondent, with Dana Andrews.

In Edge of Darkness, starring Errol Flynn, he played a German lieutenant confiscating materials such as food and clothing from a Norwegian town in an extremely arrogant way.

Later, Arco appeared in Warner Bros's controversial film Mission to Moscow, starring Walter Huston.

He also had a small role as a German submarine commander in another Humphrey Bogart movie, Action in the North Atlantic.