Locke the Echidna is a fictional character from the Sonic the Hedgehog comic Bücher published Von Archie Comics. He is a member of the Brotherhood of Guardians, and is father of Knuckles the Echidna. Similar to his son, whom he bears a strong resemblance to, Locke is an anthropomorphic, red-furred echidna. Of all the Guardians, Locke is the only one to have changed his attire before reaching old age (for a Guardian). Originally, his outfit consisted of a hooded white robe, gewand and blue boots. Some time during Sonic's Xorda-induced exile in space, Locke switched out his wardrobe. He adopted a Mehr tribal outfit, with brown boots and a ceremonial kilt. He was seen wearing similar style of pants underneath his kilt (in issues 139 to 141). He also has a shield that goes with this set of clothing.

Locke is possibly named for the philosopher, John Locke.