The jury in the civil case against Mr McGregor returned the verdict on Friday afternoon.
The jury awarded Ms Hand total damages of €248,603.60.
Mr McGregor faced accusations that he “brutally raped and beat” Nikita Hand in a south Dublin hotel in December 2018.
The Irish sports star previously told a court he had consensual sex with Ms Hand in the penthouse of the Beacon Hotel.
Ms Hand, also known as Nikita Ni Laihin, lost her case against another man, James Lawrence, who she accused of assaulting her for having sex without her consent at the same hotel.
After eight days of gathering evidence and three days of closing speeches and listening to the judge's charges, the jury of eight women and four men deliberated for six hours and 10 minutes before reaching its verdict.
After the jury read Hand's victory, McGregor shook his head.
Mr McGregor was accompanied by his family, including his partner Dee Devlin, his parents, sister and brother-in-law.
He was seated in the back row of the court, between his partner and his mother Margaret.
Ms Hand, 35, cried and was hugged by her partner and supporters.
