1) Nepali surname 
Koirala (कोइराला) is a predominantly Brahmin (Bahun) as well as Khatri Chhetri surname of Nepal. All Koirala share the same gotra, Moudgalya (Mudgal), which means all of them share the same forefather, so a Koirala can`t marry another Koirala. It can refer to: ...