Seymour Kneitel (March 16, 1908 – July 30, 1964) was an American animator. He is best known for his work with Fleischer Studios and its successor, Famous Studios.
Kneitel was born in New York City where he graduated from P.S. 10 in Manhattan and attended the High School of Commerce, taking commercial art courses. He also took evening classes at the National Academy of Design. His father died when Kneitel was about 16, and he needed work to provide support for his mother and sister.
He was able to attend an annex of Commerce HS and work after school and Saturdays for Bray Studios, coloring drawings for Colonel Heeza Liar cartoons. On graduation, he was able to find employment with a small company, L.F. Cornwell, producers of a series called Ebinizer Ebony, which were being made in a now-extinct color process called Kelly Color. He began as an office boy and within a year was one of their three animators. From 1925 to 1927, he worked as an inbetweener at Max Fleischer's "Out of the Inkwell" Studio, and was there for two years when he was offered an opportunity to go to MGM Studios in California as a junior writer.