Theo van den Boogaard (born 25 March 1948, Castricum, Netherlands) – also known as Theo Bogart – is a Dutch cartoonist.
He first came to attention as an underground cartoonist in the early 1970s for the sexually explicit comics series Ans en Hans krijgen de kans (Ans and Hans Get the Chance).
He is best known for co-creating Sjef van Oekel, a long-running comic strip based on the TV character, written by Wim T.
Schippers.
He received the 1989 Stripschapprijs for his body of work.