The High Civil Court ruled that Hussein Rabei, 34, who was raised as a woman and even married at one point, is now legally a male, al-Arabiya said Friday.
"I'm so happy and relieved that they (the court) ruled in my favor because this has been a long journey and it's finally over," Rabei said.
Rabei underwent a $13,000 sex-change procedure in Thailand, paid for by the Bahrain Health Ministry.
The procedure had the blessing of both Sunni and Shiite clerics, al-Arabiya said.
"Praise God, I feel like I'm a man, I feel like I'm myself," said Rabei, who had endured rejection from his peers, his employer and several psychiatrists.