Harry William Haenigsen (July 14, 1900 – May 29, 1991) was an American illustrator and cartoonist best known for Penny, his comic strip about a teenage girl.

[3] Haenigsen was employed briefly at the Fleischer animation studios, and then drew Our Bill for the New York Herald-Tribune Syndicate beginning March 6, 1939.

Using the stage name Jeanette E. Kerr, Bobby Haenigsen was a singer and dancer who worked with George M. Cohan and as a soloist with John Philip Sousa.

Comics scripter Kurt Busiek described Haenigsen's art approach with this strip: Haenigsen's Jive's Like That: Being the Life and Times of Our Bill was published by Procyon Press in 1947, and there were several Penny collections in 1953 and 1954, published by Prentice-Hall and Simon and Schuster.

In 1970, when Hoest left to start his own strip, My Son John, for the Chicago Tribune New York News Syndicate, Haenigsen chose to end Penny and retired.

A founding member of the National Cartoonists Society, Haenigsen was also a member of the Society of Illustrators, the Philadelphia Academy of Fine Arts, the Museum of Modern Art, the New York City Club and the New York City Coffee House.