Kacper Ławski (born 11 May 1985 in Łódź), 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. Ławski is also representative of the Polish rugby sevens.