Ondřej Vaculík (born May 12, 1986 in Jilemnice) is a Czechski jumper who has competed since 2002. At the 2006 Winter Olympics in Turin, he finished ninth in the team large hill and 45th in the individual large hill events.
Vaculík's best individual career finish was second in a Continental Cup normal hill event in Slovenia in 2007.
Vaculik's summer season 08 have so far been very good.