"great granddad" in German great-granddad Urgroßvater Uropa Detailed translations for "great granddad" great-granddad great-granddad(also: great-grandfather, great-grandpa) der Urgroßvater{masculine} That's my great-granddad Willy. Source: opensubtitles.org Corpus by OPUS Request review Und das ist mein Urgroßvater Willy. great-granddad(also: great-grandfather, great-grandpa) der Uropa{masculine}