Example coaxial connector assemblies are described. In one example, a coaxial connector assembly (10) may include first (12) and second (14) connectors that may be securely mated and unmated from each other. When mated, first and second connectors may collectively include a plurality of cable assemblies. Each cable assembly may include a coaxial cable including a center conductor that may be electrically coupled to a pin (20a) within a receptacle when the first and second connectors are mated. Ground contacts may separate neighboring pins and center conducts as well as shield structures to decrease interference between respective cable assemblies.