Portal:Cartoon Network/Selected anniversaries/January
- January 1, 2018 – Unikitty! debuts on Cartoon Network
- January 4, 1999 – Ed, Edd n Eddy debuts on Cartoon Network (1999-2009)
- January 8, 1997 – O Canada, a Canadian-American animated television anthology series debuts on Cartoon Network (1997-2002)
- January 14, 2009 – Cartoon Network Universe: FusionFall, a massively multiplayer online game developed by Cartoon Network and Grigon Entertainment is released
- January 24, 2013 – Incredible Crew, a sketch comedy television series debuts on Cartoon Network (2013)