In this paper, we introduce the concept of d -complete topological spaces, which include earlier defined classes of complete metric spaces and quasi b-metric spaces. Further, we prove some fixed point results for mappings defined on d -complete topological spaces, generalizing earlier results of Tasković, Ćirić and Prešić, Prešić, Bryant,Marjanović, Yen, Caccioppoli, Reich and Bianchini.