Marc Anthony -- He's No Dumbo in the Girlfriend Dept.

Marc Anthony and his kids hit up Disneyland with his new girlfriend who is both hot and billionaire-adjacent.

The new GF is Chloe Green, daughter of UK billionaire Sir Philip Green, whose estimated net worth is $5 billion.

It's a good bet Sir Philip provides his daughter with an endless supply of loot. He reportedly dropped $6 million on his son's Bar Mitzvah -- a lot more impressive than a bunch of useless savings bonds.