Ladislaus Vajda (also László Vajda; born Lipót Weisz; 18 August 1877 – 10 March 1933) was a Hungarian screenwriter. He wrote for 40 films in Hungary, Austria and Germany between 1916 and 1932. He was born in Eger, Northern Hungary and died in Berlin, Germany. He was the father of Hungarian film director Ladislao Vajda.