The 2017–18 Oregon Ducks men's basketball team represented the University of Oregon during the 2017–18 NCAA Division I men's basketball season. The Ducks, led by eighth-year head coach Dana Altman, played their home games at Matthew Knight Arena as members of the Pac–12 Conference. They finished the season 23–13, 10–8 in Pac-12 play to finish in a tie for sixth place. As the No. 6 seed in the Pac-12 tournament, they defeated Washington State in the first round and Utah in the quarterfinals before being defeated by USC in the semifinals. They received an invitation to the National Invitation Tournament, where they defeated Rider in the first round before losing to Marquette in the second round.

Dana Dean Altman is an American college basketball coach of the Oregon Ducks men's team. Previously he was head coach at Creighton, Kansas State and Marshall. He has been awarded a Coach of the Year Award for each team that he has coached in the NCAA to go with ten conference tournament championships and seven regular season titles while reaching the NCAA tournament sixteen times; he led the Ducks to the Final Four in 2017, which was their first as a program since 1939.