Dayton Gems may refer to:
Dayton Gems (1964–1980), defunct professional ice hockey team which played in the International Hockey League Dayton Gems (2009–2012), defunct professional ice hockey team which played in the International Hockey League and the Central Hockey League Dayton Gems (NAHL) (2003), defunct junior ice hockey team which played in the North American Hockey League Dayton Gems (junior), ice hockey team which played in the Continental Elite Hockey League Dayton Gems (soccer), soccer team which played in the USL Premier Development League