Check out grandmother nicknames from around the world from Grandparents.com:
- African: Henna, Bibi, or Ugogo
- Armenian: Tatik
- Australia: Maayy and Momu
- Cajun: MawMaw
- Chinese: Zumu or Wai Po
- Dutch: Grootmoeder
- French: Mémé
- German: Oma
- Greek: Yaya
- Hindi: Daadima
- Hebrew: Savta or Safta
- Irish: Maimeo or Morai
- Italian: Nonna
- Japanese: Obaba
- Korean: Halmoni
- Portuguese: Avo
- Russian: Babushka
- Spanish: Abuelita
- Swedish: MorMor
- Yiddish: Bubby
Source: Flickr user Philippe Put