Big Meech is not the father … and the DNA test results in a recent paternity suit are definitive.

The Black Mafia Family cofounder’s attorney, Alan Soven, tells TMZ … Meech has been cleared in a paternity case after Labcorp results came back Wednesday showing a 0% probability of paternity.

Soven says the findings confirm what he previously told us … Meech is not biologically related to the woman who filed the claim, and he adds the case is now expected to be dismissed.

We broke the story … a woman named Beyla Richard-Flenory filed a paternity action in a Florida court back in December, claiming she had strong reason to believe Meech — legal name Demetrius Flenory Sr. — is her biological father.

In court docs, she said the situation caused her “significant emotional distress,” alleging she spent years trying to reach members of his family, with mixed reactions … some believing her, others dismissing her claims.

She also made clear she wasn’t seeking financial support, but instead wanted “the truth, acknowledgment, and the dignity that every person deserves.”