Nabil Kassel (born March 10, 1984) is an Algerian boxer best known for winning the middleweight gold at the 2007 All-Africa Games.

Kassel participated at the 2004 Olympics at the age of 19 but lost to southpaw American Andre Dirrell by RSC-2.

He won the 2005 African Championships, and was a member of the team that competed for Africa at the 2005 Boxing World Cup in Moscow, Russia.

At the qualifier he lost again to veteran Hikal but beat Daniel Shishia for the third spot.

This biographical article related to an Algerian boxing figure is a stub.