Nizar ben Abdelaziz Trabelsi (2 July 1970 - ) is a suspected Al-Qaida terrorist.

He was once a football player for Germany.

The Tunisian is suspected of plotting the Paris embassy terrorist attack plot. He is said to have been the designated suicide bomber. He was accused of planning to strap a bomb onto himself before walking into the embassy. Trabelsi was to wear a business suit to conceal the bomb.

Trabelsi was arrested in an Uccle, Belgium apartment, near Brussels. He was convicted of trying to destroy public property, illegal arms possession and being a member in a private militia.