2018–19 Colorado State Rams men's basketball team

The 2018–19 Colorado State Rams men's basketball team represented Colorado State University during the 2018–19 NCAA Division I men's basketball season. The team was coached by Niko Medved in his first season. The Rams played their home games at Moby Arena on CSU's main campus in Fort Collins, Colorado as members of the Mountain West Conference. They finished the season 12–20, 7–11 in Mountain West play to finish in a three-way tie for seventh place. They lost in the first round of the Mountain West tournament to Boise State.

Previous season
The Rams finished the 2017–18 season 11–21, 4–14 in Mountain West play to finish in tenth place. They lost in the first round of the Mountain West tournament to Utah State.

On February 3, 2018, prior to their game against Nevada, head coach Larry Eustachy was placed on administrative leave amid an internal investigation by Colorado State of Eustachy's conduct with players and other staff members. Eustachy had previously been reprimanded by the university in 2017 for the same type of behavior from a 2014 university led investigation. On February 8, players boycotted practice because of the lack of communication from the athletic department as to the situation. On the same day, it was reported that Eustachy would be fired by the school.

The Rams were initially led by assistant coach Steve Barnes for the first 2 games of Eustachy's absence. However, prior to the team's home game against San Jose State on February 10, he was also placed on administrative leave. Assistant coach Jase Herl took over as interim head coach for the rest of the season.

On February 26, Eustachy officially resigned from Colorado State.

On March 22, Drake head coach and former CSU assistant coach Niko Medved was hired as the new head coach of the Rams.

Schedule and results
!colspan=9 style=| Exhibition

!colspan=9 style=| Non-conference regular season

!colspan=9 style=| Mountain West regular season

!colspan=9 style=| Mountain West tournament

Source