Heads up, 2044 Olympics ... Usain Bolt's baby daughter has officially arrived!!!
Jamaican Prime Minister Andrew Holness confirmed the news on social media Monday ... saying Bolt's longtime girlfriend Kasi Bennett gave birth to the couple's child this week.
"Congratulations to our sprint legend Usain Bolt and Kasi Bennett on the arrival of their baby girl!" Holness wrote.
Bolt and Bennett first announced their pregnancy back in January ... and at a gender reveal party in March -- Usain was FIRED UP over his future as a #GirlDad!