Kacper Lawski (born 11 May 1985 in Lódz), is a Polish rugby player, second or third line of the lock in the French club CS Vienne.
Kacper played at all age levels—cadet (U-16), juniors (U-18 World Cup participant in 2003, European champion 2003) and youth (U-20 European championship participant 2004).
He is a Polish national player.Lawski is also representative of the Polish rugby sevens.