The TV star made the announcement on Instagram by sharing a gorgeous picture of his new baby boy.
'Chester Raymond Beadle McVey 💙👶🏼 Chester not really sure why it kind of just came to us and we loved it,' he wrote.
Gaz continued by telling his 3.4 million followers that there's a sentimental reason behind his lad's middle name.
'Raymond after my grandad of course... and a nice double barrel surname until we are married 😂😜.'
Clearly loving the couple's choice of moniker, lots of fans left kind comments below Gaz's photo.
'A beautiful name for a beautiful little boy congratulations again,' said one.
Another added: 'Such a cutey and love the name 😍.'
A third user of the social networking site also pointed out the newborn's likeness to Gaz's girlfriend, model Emma McVey.
'Great name. Looks like Mum. Congratulations,' they said.
And keen to reveal what the duo have called their son to her own network, Emma also shared a status.
'Chester Raymond Beadle-McVey 💙 My world 🌍,’ she commented before giving her admirers insight into life as a parent behind closed doors.
'We've forgotten what sleep is, had exploding poops, pee flying in the air, sick down everything I've worn and you still make me smile constantly 👶🏼 love you forever little man 💙.'
Chester Raymond Beadle-McVey ð’ My world ð weâve forgotten what sleep is, had exploding poops, pee flying in the air, sick down everything Iâve worn and you still make me smile constantly ð‘¶ð¼ love you forever little man ð’ pic.twitter.com/8dIb2hr5XS— Emma McVey (@Emma_mcvey_) January 19, 2018
Gaz and Emma welcomed their new addition earlier this week at the Lindo Wing of St Mary's hospital in London.
Chester weighed 6lbs 2oz.
Despite telling fans that he's a nervy parent, it seems that 29-year-old Gaz is adjusting well to life as a first time dad.
He's shared numerous shots of the baby online, including a sweet black and white one of the youngster gripping his finger ever so tightly.