He has a “Bourne Identity” crisis.

A drunken Florida man was booted out of an area library — and then arrested after he identified himself to police as “Jason Bourne,” the fictional super-spy created by author Robert Ludlum.

Police were first called to the Barbara S. Ponce Public Library in Pinellas Park last Tuesday afternoon for reports of a man causing a disturbance, News4Jax reported, citing an arrest report.

The boozed-up man, identified as 45-year-old Jonathan William Chapman, refused to leave the library even after being asked multiple times by staffers to vamoose, according to the news outlet.

When police arrived, Chapman told them his name was Bourne — played by actor Matt Damon in the blockbuster action-thriller series.

Chapman also gave cops a bogus Social Security number.

Authorities eventually figured out Chapman’s true identity, and busted him on a first-degree misdemeanor charge of resisting an officer without violence, according to News4Jax.