Shark attack survivor Bethany Hamilton has given birth to her first child.

The pro-surfer, who lost her arm in the 2003 shark drama which inspired the film Soul Surfer, welcomed her baby son with husband Adam Dirks on 1 June (15).

Hamilton shared the first family snap of the couple with its newborn child on Instagram.com on Monday (15Jun15), adding the caption, "Blessed to welcome our son, Tobias, into the world. Born June 1st, 7.9 lbs. and 21" Long. He is named after his great grandpa Tobias meaning 'The goodness of God'.

"Adam and I so in love with our lil guy and are stoked to share life with him!"

Hamilton and Dirks wed in 2013.