Ryan Seacrest -- SWATTING VICTIM

Ryan Seacrest is being swatted right now ... TMZ has learned.

Law enforcement sources tell us ... a 911 call came in by someone claiming shots were fired inside the house by "mobster looking guys in suits with rifles."

Our sources say it has all the markings of swatting.

A slew of cops are at the house, which Ryan recently purchased from Ellen DeGeneres for around $39 million.

It's ironic ... Seacrest was just talking to Russell Brand this morning on the radio about Russell's recent swatting experience. Crazy timing.

TMZ broke the story ... just days ago Russell, Rihanna, Justin Timberlake, Selena Gomez and Diddy were all swatted.