Ayesha Curry is putting an end to "ridiculous" rumors she's in an open relationship with her NBA superstar husband, Stephen Curry ... saying it's 100% not true.
Ayesha -- who married Steph in 2011 -- is breaking her silence weeks after gossip blogs reported (citing an anonymous tip) the adored couple wasn't monogamous ... denying the claims in a response to an Instagram troll.
"Don't believe everything you read," Curry said on Monday. "Do you know how ridiculous that is? Don't disrespect my marriage like that.