4 ms·Mutton is adult sheep, older than hogget which is older than lamb. Goat is goat.by sitharus 3y agoMutton is adult sheep, older than hogget which is older than lamb. Goat is goat.objektif 3y agoWell may be in the US I guess. But if you go to India mutton means goat.sitharus 3y agoI'm not in the US. Mutton is sheep over a year old in the UK, NZ, Australia, USA and Canada at least. Interesting to know about India though, TIL!deleted 3y ago[deleted]