Rosenwyn, Renee, Rita, Reetta (Finnish name, pronounced Ret-ta with a bit of a rolled R), Raquel, Ruby, Raisa, Rhiannon, Rula, Regina, Rhona, Riley,Roxy, Rotha
Roger, Reginald, Ronald, Rhys, Russ, Ross, Ren, Red, Riley, Ranald, Rex, Raj, Rhett, Ryan, Ralph, Rafferty, Raymond