Tim Tebow's officially a dad ... his wife, Demi-Leigh, just revealed she gave birth to the couple's first child over the weekend.
Demi-Leigh said on her Instagram page the bundle of joy entered the world on Sunday ... and Mom, Dad and little girl are all happy and healthy.
"Our daughter is here!" Demi-Leigh wrote on her IG. "We couldn't be more grateful for the blessing and gift of this new little life."
"We’re so grateful to the whole medical team that assisted us in the best way possible during my labor and delivery.