The Foo Fighters star's 37-year-old wife, whom he married in 2003, is set to give birth to another baby girl this year.
A source told UsMagazine.com that the couple, who already have daughters Violet Maye, eight, and Harper Willow, five, are struggling to come up with a name for their unborn baby, as they have already used all of the names they liked for their eldest girls.
Dave recently revealed that he had passed on his love for music, particularly the Beatles, to his children.
Speaking at the CBS special, 'The Night That Changed America: A Grammy Salute to the Beatles,' on Sunday night (09.02.14), the 45-year-old star said: "I can honestly say that if it weren't for the Beatles, I would not be a musician. From a very early age, I loved their groove and their swagger, their grace and their beauty, their dark and their light. The Beatles knew no boundaries and in that freedom they seemed to define what we now know today as rock and roll for my parents, for me and for my daughter too."
Before performing a cover of the group's hit 'Hey Bulldog,' he added: "The song I'm proud to play with these great musicians, from the 'Yellow Submarine' soundtrack, is not one of the Beatles greatest hits, but to me, it's a quintessential Beatles rocker. This is for my Mom's favourite band, my favourite band and now my daughter's favourite band."