A shaving razor adapter used to attach a disposable shaving razor cartridge of a first shaving razor configuration to a shaving razor handle of a second shaving razor configuration. The shaving razor adapter includes a first attachment portion which resembles the connecting end of the shaving razor handle of the first shaving razor configuration. The first attachment portion attaches the adapter to the shaving razor cartridge of the first shaving razor configuration. The second attachment portion of the adapter resembles the connecting member of a shaving razor cartridge of a second shaving razor configuration that interfaces with the connecting end of the handle of the second shaving razor configuration. The second attachment portion of the adapter releasably attaches the adapter to the connecting end of the shaving razor handle of the second shaving razor configuration.