Jeff Adrien (born February 10, 1986) is an American professional basketball player for the Piratas de Quebradillas of the Baloncesto Superior Nacional (BSN).

After his graduation (2004), Adrien attended Brewster Academy in Wolfeboro for a postgraduate year, playing in the Amateur Athletic Union,[5][6] before entering the University of Connecticut on a full scholarship.

In 2009, The Huskies made it to the Final Four of the 2009 NCAA Men's Division I Basketball Championship, before losing to the Michigan State Spartans.

[10] As for style of play, Adrien said in an interview that he feels the best attributes that he brings to the game are his "leadership, rebounding, toughness, and the ability to score over taller guys".

[11] Adrien was not selected in the 2009 NBA draft, but later signed with Spanish league's Leite Río Breogán in Lugo, Galicia.

[13] On October 10, 2010, Adrien scored 11 points and grabbed 15 rebounds in 22 minutes in a preseason game against the Sacramento Kings[14] He made the Warriors' final roster, but was waived in December 2010 to make room for Acie Law.

[16] On December 21, 2011, Adrien signed with the Houston Rockets, where he was reunited with his former University of Connecticut teammate Hasheem Thabeet.

[21] On February 20, 2014, Adrien was traded to the Milwaukee Bucks along with Ramon Sessions in exchange for Gary Neal and Luke Ridnour.

[27] Prior to Game 3 of Guangdong's semi-final match-up against the Beijing Ducks, Adrien was deactivated in order to open up a roster spot for Emmanuel Mudiay who returned from injury.

However, despite their outstanding regular season with 76% home game victories, the team who ended the league at the fifth place didn't manage to win in the play-offs.

[34] On April 8, 2018, Adrien recorded a career-high 31 points, shooting 10-of-17 from the field, along with 10 rebounds and 2 steals in an 86–78 win over Hapoel Jerusalem.

[36][37] On March 7, 2019, Adrien recorded a season-high 25 points, shooting 9-of-14 from the field, along with 12 rebounds and four assists in an 89–90 loss to Hapoel Gilboa Galil.