A support group for dads has become all the rage in the stroller-mom enclave of Park Slope, Brooklyn.

Dubbed the Park Slope Parents Dads Group, the men meet once or twice a month — sometimes in bars with beers in hand — to swap stories about changing diapers in public, the best pre-k curriculum, auditioning pediatricians and the hottest new sleep-training methods.

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“Fathers get overlooked a little bit — all dads with little kids are just as exhausted as moms,’’ said George Davis, a commercial music producer with two kids.

“It’s nice to have a group where you have moral support and make new friends in the neighborhood,’’ Davis said. “It’s not easy [to be a father], and maybe we’re self-doubting or really confident about our parenting skills and want to share.”

The group’s umbrella Park Slope Parents organization was founded as a Yahoo! group by Susan Fox in 2002. It now has more than 5,500 families as members. As it expanded into sub-forums, Fox added the dads group in 2011, believing fathers needed to a venue to share, too.

The dads group now includes more than 900 families.

“Being a parent is super-important for both moms and dads, but moms get the vast majority of attention,” Fox said. “There is not that much support for dads. The tide is changing, at least in our area.”

The dads’ online discussions range from the practical, including talk about the best baby monitors and carriers, to the social, which can range from fantasy football to English Premiere League meet-ups.

Then there are the more pressing matters: In one recent thread, a dad found much-needed support and advice while his premature son was still in the hospital.

For some of the dads, it took a push from their wives to participate.

“Honestly, I rolled my eyes” at first, said John O’Keefe, who does marketing technology sales for Oracle and has a 4-month-old daughter.

The dad said that when he arrived early to his first event, “there were like four other guys. But then it turned into this huge scene that was a total surprise. I had a blast.

“You need to be able to talk the game with somebody,” he said. “It’s like when you get into college. You need to make friends in your new situation.”

When Andrew Bentley took a three-month paternity leave from Google to care for his son after his wife returned to work, he identified one need the group still hadn’t filled.

“My first day as primary caregiver, I went to my wife’s moms group. It was great, but I was definitely the odd one out,” Bentley said.

“I knew there were a lot of dads in the group, and I was wondering who was around during the day. I sent out the email to create a Stay-At-Home Dads Group, and the response was pretty immediate.”

Soon, fathers were meeting regularly on weekdays for walks in Prospect Park and more.

“To immerse myself in another world where the dad is staying home, but that’s the normative behavior, was pretty cool for me,” Bentley said.

“It made me feel like it was OK. I remember meeting one father who’d really valued his career, and him saying, ‘Yeah, I’m a full-time dad now, and I love my job.’”