Michael Rosario (born November 2, 1990) is a Puerto Rican professional basketball player for Leones de Ponce of the Baloncesto Superior Nacional (BSN).

On international duty, he represented Puerto Rico in the 2012 Olympic qualifying tournament and FIBA Under-19 World Championship, never medaling in either competitions.

In his senior season, St. Anthony came inches from a rare state tournament loss, a matter that was featured in the 2010 documentary, The Street Stops Here.

"[1] Following his years with St. Anthony, he took part in the 2008 McDonald's All-American Boys Game with several other future stars, including Tyreke Evans, Kemba Walker, and Al-Farouq Aminu.

[2][3] On April 6, 2007, Rosario committed to play for the Rutgers Scarlet Knights men's basketball team in college, being coached by Fred Hill.

During the summer prior to Rosario's matriculation with Rutgers University, future head coach Fred Hill made the comment, "This honor is further confirmation that Mike Rosario is one of the nation's premier players.” He also said, "Our mission at Rutgers is to build a National Championship-caliber program and Mike is the type of individual who helps further this process.

[10] On March 7, 2009, vs the South Florida Bulls, Rosario scored zero points for the first time in his college career on 0-of-5 shooting from the field.

[11] He played his sole postseason game in the Big East tournament first round, against Notre Dame, finishing with 12 points, 4 rebounds, and 2 assists.

[13] Apart from his Big East honors, Rosario was named Metropolitan Basketball Writers Association Rookie of the Year and a CollegeInsider.com Freshmen All-American.

He was listed as one of the possible factors in the rebuilding of the Big East Conference along with Greg Monroe, Yancy Gates, and many other members of the 2008-09 All-Rookie Team.

This was his second Legends Classic appearance, the first one in which he scored 13 points against the Drexel Dragons at the Louis Brown Athletic Center (RAC).

Due to his strong performance through the tournament, Rosario was named to the All-Tournament Team with Anthony Gurley, Erving Walker, Vernon Macklin, and Kalin Lucas.

However, since the preseason, Rosario endured a disc problem in his lower back that caused numbness in the area, but did not require surgery according to Billy Donovan.

[29] Through the season, he did not start in a single game, generally coming off the bench for Bradley Beal, Erving Walker, and Kenny Boynton.

[32] Due to the departures of several players from the previous season's roster, including Bradley Beal, Rosario started in all of his games.

He played off the bench in the majority of his rookie season in Puerto Rico, but posted a career-high 19 points vs Vaqueros de Bayamón on June 13, 2013.