Łukasz Wiśniewski (born 3 February 1989) is a Polish professional volleyball player who plays as a middle blocker for Skra Bełchatów.

On 10 May 2014, Wiśniewski married Katarzyna (née Łuszczewska).

On 2 January 2017, his wife gave birth to their daughter Aleksandra.

Wiśniewski made his debut in the Poland national team on 30 May 2010 in a friendly match against France.

In December 2011, Poland, including Wiśniewski won a silver medal at the World Cup.