Alfred Julius Eugster (February 11, 1909 – January 1, 1997) was an American animator, writer, and film director. He worked for a number of American animation studios, including Fleischer Studios, the Iwerks Studio, Walt Disney Productions, and Famous Studios.

Eugster began his career in animation in April 1925 where he worked at the Pat Sullivan studio. He would blacken in the drawing of Felix the Cat. During his time working for the Pat Sullivan studio, he worked under Otto Messmer.