What is "dreesen"

Dreesen is a surname. Notable people with the surname include:

• Bill Dreesen (1904–1971), American baseball player
• Liesbet Dreesen (born 1976), Belgian swimmer
• Tim Dreesen (born 1987), Belgian footballer
• Tom Dreesen (born 1942), American stand-up comedian
• Willi Dreesen (1928–2013), Swiss painter and sculptor