In the entire world, Ruddi (Ruddi 
) is a rare dominantly masculine, but seldom female first name. The first name Ruddi is habitual in the Dominican Republic, where it is quite a rare male name, Bolivia, where it is a rare masculine name, and the Democratic Republic of the Congo. Measured by absolute frequency, it is the most numerous in Indonesia, the Democratic Republic of the Congo, and India. Very seldom, Ruddi is the last name as well as the forename.
Rios, Choeday, Barooah, Khatoon, Kusnadi, Kitchen, Ramirez, Effendi, Martinez, Setiawan, Sodemann, Carneiro, Cabalida, Loenders, Tamakloe, Haryanto, Vervloet, Oliveira, Urquilla, Barbolini, Rodriguez, Pilkington, Almonte, Villarreal, Snijder, Schmidt, Devi, Tows, Souza, Amaya, Carew, Bruce, Perez, Peña, Gomez, Grion, Lubis, Yanto, Sleurs, Chavez, Carias, Khatun, Garcia, Hansen, Fanani, Madeira, Montero, Swinnen, and Christensen