In the entire world, Dewer (Dewer 
) is a very rare male first name. More prevalently, Dewer is the last name as well as the forename.
Mr, Brian, Brett, Robin, Royce, Reece, Deven, Laure, Larry, Linda, Logan, James, Jalyn, Julie, Jilly, Hazel, Heidi, Inès, Wilma, Marius, Sandra, Sherri, Betty, Stefan, Caleb, Assia, Ms, Pam, Roy, Gay, Tia, Mark, Lili, Lima, Loic, John, Vava, Fres, Yann, Maria, Mandy, Sheri, Susan, Alice, Andre, Arwen, Amber, Chloe, and Angela