In what has mostly been a terrible season all around him, Francisco Lindor has made some Mets history.

Lindor’s second home run of Wednesday’s nightcap of a doubleheader — and third homer of the day — was his 30th of the season, becoming the fourth Met ever to join the 30-30 club.

Lindor already had swiped a career-best 30 bases, but he needed a burst to reach the homer milestone.

That burst arrived at Citi Field against the Marlins, who watched Lindor homer three times in his first seven plate appearances of the day.

The 29-year-old, who previously had never gone 30-30, is the first Met to do so since David Wright in 2007.

The only other Mets in the club are Howard Johnson and Darryl Strawberry.

No. 30 came against Miami’s Johnny Cueto, who threw a first-pitch slider in the fourth inning that was rocketed 398 feet to right-center.

Lindor smoked it, watched it go for a moment and pumped his fist as he made his way to first base.

After the homer, Lindor’s season OPS was up to .803 to go along with excellent and consistent defense at shortstop, having played in 156 of the Mets’ 158 games.