Kazimierz Sykulski
- categories: vir , martyr , presbyter
- date of birth: 29.12.1882
- date of death: 11.12.1941
- beatification: 13.06.1999 (ceremonially)
- canonization: non-existence
- other Roman Martyrology days: 01.12.
- other memorial days: non-existence
- order: non-existence
- order founder: non-existence
- forenames: Casimirus
- surnames: Sykulski
- epithets: non-existence