Kwaśny is surname of:

• Dorota Kwaśna (born 1972), Polish cross country skier
• Joanna Nowicka (née Kwaśna; born 1966), Polish archer
• {{Interlanguage link multi|Ursula Kwasny|de}} (born 1952), German politician (CDU)
• Zdzisław Kwaśny (born 1960), Polish hammer thrower

• Gerrit Korteweg
• Gerrit Kouwenaar
• Gerrit Kruize
• Gerrit Lundens
• Gerrit Mohlmann
• Gerrit Moll
• Gerrit Möhlmann
• Gerrit olivier
• Gerrit Olivier
• Gerrit Opperman
• Gerrit Patist
• Gerrit Peters
• Gerrit Pietersz Sweelinck
• Gerrit Pietersz Sweelink
• Gerrit Plomp
• Gerrit Pressel
• Gerrit Rietveld Academy
• Gerrit Roos
• Gerrit Schouten
• Gerritsen Creek
• Gerritsen Creek, Brooklyn
• Gerrit Slot
• Gerrit Smith (rugby union)
• Gerrit Stoeten
• Gerritsz Bay