Cosmetic composition comprising a combination of surfactants of carboxylate, acylisethionate and alkyl(poly)glycoside type The invention relates to a cosmetic composition comprising: one or more anionic surfactants of carboxylate type, chosen from the compounds of formule (I), R—(OCH2CH2)nW—(CHY1)p-COOX (I), in a content of greater than or equal to 3% by weight relative to the total weight of the composition, one or more anionic surfactants of (C8-C22) acylisethionate type, and -one or more nonionic surfactants of alkyl(poly)glycoside type. This composition is intended for the cosmetic treatment of keratin materials, and in particular for washing the hair. It has excellent foaming power.