Microsporum canis and Microsporum gypseum were isolated from 100 cats without signs of dermatophytosis in eight and 17 cats, respectively. The saprophytic fungi isolated were Cladosporium, Penicillium, Aspergillus, Alternaria, unsporulated growth, and Scopulariopsis. The largest incidence of dermatophyte isolation was observed in summer. The dermatophytes isolated were tested for in vitro susceptibility to griseofulvin and ketoconazole, and the latter was more active against M. canis and M. gypseum.