ESPN baseball analyst Peter Gammons suffered a brain aneurysm yesterday and underwent surgery at a Boston-area hospital.

The 61-year-old Gammons was stricken near his Cape Cod, Mass., home and was airlifted to an undisclosed hospital, ESPN spokesman Josh Krulewitz told The Post.

Gammons came out of surgery last night, but there were no further details, nor any immediate word on his condition, Krulewitz said.

However, the Boston Globe’s Web site reported Gammons was expected to be in intensive care for 10 to 12 days.

An aneurysm is a bulge in a blood vessel that carries the risk of rupturing, causing internal bleeding. It was not known if Gammons’ aneurysm burst.

Gammons, a member of the writers’ wing of the Baseball Hall of Fame, started at the Globe in 1969. He has been a regular on ESPN’s Sunday night telecasts this season, and worked the Yankees-Braves game at Yankee Stadium on Monday night.

“Peter did have an aneurysm in his brain and went for surgery. Our thoughts and wishes are with Peter and his family,” Krulewitz said.

In the 1970s, while at the Globe, Gammons popularized the style of baseball notes columns that became staples in Sunday newspapers. He later wrote for Sports Illustrated.

At the 2005 Hall of Fame induction ceremony, Gammons was awarded the 2004 J.G. Taylor Spink Award for outstanding baseball writing, selected in balloting by the Baseball Writers’ Association of America.

Gammons covered the NHL, baseball and college basketball for Sports Illustrated from 1976-78 and 1986-90, working a second stint at the Globe in between.

He began working for ESPN full-time in 1990 and is a studio analyst for “Baseball Tonight,” as well as a regular contributor for “SportsCenter,” ESPNEWS, ESPN Radio and ESPN The Magazine. His column and Weblog can be found on ESPN.com.

He also has written a book, “Beyond the Sixth Game,” about free agency.

Gammons, a native of Boston who grew up in nearby Groton, attended the University of North Carolina.