Throughout the world, Kolsu (Kolsu 
) is a very rare epicene first name. The first name Kolsu is habitual in Southern Asia, particularly India, where it is an extremely rare gender-neutral name. Much more frequently, Kolsu is the last name as well as the forename.
Siva, Krishnarao, Edukondalu, Venkayamma, Kanakadurga, Nancharamma, Vaddikasulu, Seetaramaiah, Sesharathnam, Srinivasarao, Aadinarayana, Koteshvaramma, Koteswararao, Dhanalakshmi, Nagaswararao, Nageswaramma, Venkateswara, Sambashivarao, Sathyanarayan, Venkateshwara, Venkateshvara, Satyannarayana, Bangaramma, Naraayana, Jamalaiah, Danalaxmi, Ramu, Naga, Subba, Sujata, Kasulu, Audaiah, Bholaxmi, Ramarao, Rambabu, Lakshmi, Venkatalakshmi, Venkata, Subbarao, Anagamma, Kondaiah, Rangamma, Rattamma, Nagaraju, Nagamani, Srinivasa, Brahmaiah, Pothuraju, Shivamma, and Venkateshwarrao