Peter Sivák (born 21 March 1982) is a Slovak professional ice hockey forward who played for the Tulsa Oilers of the ECHL.

When playing for MsHK Žilina in the 2011–12 season of the 39th round of top slovak league against HK Poprad, he opened the scoring in the fifth second.

On 22 August 2014, the Bridgeport Sound Tigers of the AHL announced that they had signed Sivák as an unrestricted free agent to a one-year contract.

On 15 July 2015, Sivák was signed as a free agent to remain in the ECHL, agreeing to a one-year contract with the Fort Wayne Komets.

[9] With the Alaska Aces ceasing operations following the 2016–17 season, Sivak signed as a free agent to continue in the ECHL with the Utah Grizzlies on August 8, 2017.