Grams, Gran, Gigi, Nana, Nanny, Mimi, Mimzy, Mami, Maymay, Masey, Mia, Babs
Papa, Pops, Gramps, Grampy, Pappy, Paddy, Pop pop, Popo, Peppy, Bubba/Bub, Buster, Buddy/Bud
Look to your family heritage, and use the word for “grandmother” or “grandfather” (or a variation of it) in another language. Your mom might just love being Nonni!
Let the grandparents have fun with it. Maybe your dad always wanted a certain nickname … or just a different name. Doc, Sonny or even Fred are all possibilities. Or you could go with a couple’s combo: Lolly and Pop, anyone?
If you can handle the anticipation, some families wait it out and see what baby comes up with. Just be warned you could get stuck with a rather, ahem, unusual moniker. (We know a grandma who goes by Ninja—and you can bet she didn’t choose that on her own!)