Wolbachia are obligate, maternally inherited, intracellular bacteria that infect numerous insects and other invertebrates. Wolbachia infections have evolved multiple mechanisms to manipulate host reproduction and facilitate invasion of naïve host populations. One such mechanism is cytoplasmic incompatibility (CI). Previously developed models predict Wolbachia infection dynamics influence the ability of Wolbachia to invade a naïve host population. Moreover, studies of Wolbachia infection dynamics are also relevant to proposed Wolbachia-based population replacement and suppression strategies targeting medically and economically important insects. The success and feasibility of the latter strategies will be affected by Wolbachia infection dynamics, including host fitness effects. Prior studies on Wolbachia infection dynamics have focused on CI levels, maternal inheritance rates, fecundity and longevity of females. In contrast, relatively few studies have examined Wolbachia impacts on male fitness. Here, Wolbachia-induced fitness effects in males were examined, specifically we examine for a Wolbachia effect on mating success. Laboratory cages were used to examine male mating competitiveness between strains of Aedes mosquitoes with differing Wolbachia types. In addition, the same study was used to compare male longevity. Results suggest a potential impact of Wolbachia on male competitiveness and longevity. The results will be discussed in relation to ongoing studies designed to better define mechanisms for male competitiveness differences. Furthermore,Wolbachia effects on male fitness will be discussed in relation to previously identified fitness differences in Aedes albopictus, the spread and maintenance of Wolbachia in natural populations, and potential impacts on applied strategies.