CrabbEnglish, Scottish From Old English crabba "crab (crustacean)", a nickname for someone with a peculiar gait. Could also be from the sense of "crabapple (tree)", from Middle English crabbe "crabapple, wild apple", hence a topographic name for someone who lived by a crabapple tree, or a nickname for a cantankerous person, with reference to the sourness of the fruit.
KanieJapanese From Japanese 蟹 (kani) meaning "crab" and 江 (e) meaning "bay, inlet".
KrabbeGerman, Dutch, Danish Means "crab, shrimp", either a metonymic occupational name for someone who caught or sold shellfish, or a nickname based on someone’s way of walking.
KrabiEstonian Krabi is an Estonian surname meaning "crab".
KrebsbachGerman From a place name meaning "crab stream" in German.