Geerts is a Dutch patronymic surname, meaning "son of Geert". Notable people with the surname include:

• André Geerts (1955–2010), Belgian comics author, creator of Jojo
• Charles Geerts (1930–2015), Belgian football goalkeeper
• Charles Geerts (born 1943), Dutch brothel owner
• Christiane Geerts (born 1940s), Belgian racing cyclist
• Geert Geerts, birth name of Erasmus (c.1467-1536), Dutch Renaissance humanist
• Frans Geerts (1869–1957), Belgian painter
• Karel Hendrik Geerts (1807–1855), Belgian sculptor
• Paul Geerts (born 1937), Belgian comic strip author, main artist of the Spike and Suzy series in 1972–2002
• Wim Geerts (born ca. 1963), Dutch ambassador and Secretary of Defense
• Jago Geerts (born 2000), Belgian motocross rider