A is a 1965 short film animated by Jan Lenica.
It involves a writer tormented by a giant letter "A". He frees himself from the "A" only to encounter a "B".
Production began in late 1964, and the film premiered at the Oberhausen Film Festival in February 1965. It was considered lost until it was found as a part of a 1973 episode of Screening Room and uploaded to YouTube in 2016. A quotation by Eugène Ionesco is featured at the end of the film.