The 23-year-old Olympian will join Minnesota in time for the 2017 season after deciding to finish her studies at the University of Southern California.
Fagbene, who was born in the United States but grew up in London, has played 32 times for Britain.
She averaged 13.6 points and nine rebounds for USC last season.
Fagbenle played three seasons at Harvard before transferring to USC to pursue a masters degree in strategical public relations.
Great Britain's Temi Fagbenle will play for Minnesota Lynx in the WNBA after being selected in the final round of this year's draft.