Surname Ruthan (Ruthan 
) , globally, is a very rare cognomen. The family name Ruthan is habitual in Malaysia, where it is a very rare surname, South Africa, and Israel. Measured by absolute frequency, it most frequently occurs in India, South Africa, and Malaysia. More prevalently, Ruthan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruthan | Jamaica, United States, India, South Africa, Philippines |
May, Gagner, Gordon, Goecks, Freese, Fields, Sinniah, Stevens, Schmitt, Skelton, Brodsky, Killian, Patient, Proctor, Noderer, Meszaros, Beaumont, Rodibaugh, Drummond, Janowiec, Williams, Schaeffer, Garvey, Parish, Cooper, Smikle, Moos, Arca, Chee, Kiel, Robb, Wein, Mason, Masor, Moore, Murry, Blackmore, Scott, Clark, Brann, Knarr, Plant, Lewis, Jones, Martin, Santos, Seaton, Sparks, Smith, and Dagostino