Last name Garritsen (Garritsen 
) , in the world, is a rare surname. The cognomen Garritsen is habitual in Netherlands, where it is quite a rare surname, Slovenia, where it is a rare surname, and Belgium. Measured by absolute frequency, it is commonest in Western Europe, particularly Netherlands, Germany, and Belgium.
| VARIANT | COUNTRY |
|---|---|
| Garritsen | Netherlands, Canada, Belgium, United States, Germany |
| cornelis garritsen NL (b. 1921) |
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martijn garritsen Dutch DJ and record producer, NL (b. 1996) |
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| margaret marie garritsen Ph.D. Massachusetts Institute of Technology 1946 |
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| koen garritsen Dutch association football player, NL (b. 1983) |
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