No, he doesn't have any siblings or a family in general in the main-canon. But in the DIC cartoon, Sonic Underground, he has a brother named Manic and a sister named Sonia.
Only from Sonic Underground, but it's not canon. Manic and Sonia are his siblings.
He has a brother named Manic the Hedgehog and a sister named Sonia the Hedgehog.
The anagram of sonic the hedgehog "sonic the hedgehog."
sonic the hedgehog
Sonic only has siblings in the non-canonical TV series Sonic Underground. He has a sister, Sonia and a brother, Manic.
sonic the hedgehog
sonic the hedgehog
sonic the hedgehog
Sonic the Hedgehog
Sonic the Hedgehog
Sonic the Hedgehog
Sonic the. Hedgehog