Walter Wilhelm Karl Ernst Rilla (Neunkirchen, Alemanya, 22 d’agost de 1894 - Rosenheim, Alemanya, 21 de novembre de 1980) va ser un actor de cinema alemany d'origen jueu. Va aparèixer en més de 130 pel·lícules entre 1922 i 1977. Va emigrar a Anglaterra durant la guerra. Era el pare del director de cinema Wolf Rilla.

Walter Rilla (22 August 1894 – 21 November 1980) was a German film actor of Jewish descent. He appeared in more than 130 films between 1922 and 1977. He was born in Neunkirchen, Germany and died in Rosenheim, Germany. He was the father of the director Wolf Rilla, who directed him in Cairo.