The 2018–19 Sacramento State Hornets men's basketball team represented California State University, Sacramento in the 2018–19 NCAA Division I men's basketball season. The Hornets were led by eleventh-year head coach Brian Katz and competed at The Nest as a member of the Big Sky Conference for the 23rd consecutive season. They finished the season 15–16, 8–12 in Big Sky play to finish in a tie for eighth place. They defeated Northern Arizona in the first round of the Big Sky tournament before losing in the quarterfinals to Montana.