The "Cougar Town" cast member gave birth to the child July 2.
She and husband Marc Silverstein also have a 4-year-old daughter named Birdie Leigh.
"It's weird people think my kids will be in therapy because of their names," Philipps tweeted Thursday. "Guys, my kids will be in therapy for LOTS of reasons, I'm sure."
Swim Week Miami Beach 2014 [PHOTOS]