Koirala (Nepali: कोइराला) is a Khatri/Chettri surname of Nepal as well as brahmin. 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:
Koirala family, a dominating family in Nepalese politics
Anuradha Koirala, Nepalese social activist, founder and director of Maiti Nepal
Bhagawan Koirala (b. 1960), Executive Director & Senior Consultant Cardiac Surgeon
Bishweshwar Prasad Koirala (B.P. Koirala) (1914–1982) , Prime Minister of Nepal from 1959 to 1960
Bharat Koirala, winner of the 2002 Ramon Magsaysay Award for Journalism
Girija Prasad Koirala (1925–2010), five times Prime Minister of Nepal in the 1990's and 2000's, Head of State from 2007 to 2008
Krishna Prasad Koirala (d. 1943), political leader of Nepal
Kulchandar Koirala, writer
Manisha Koirala (b. 1970), Indian Bollywood actress
Matrika Prasad Koirala (1912–1997), Prime Minister of Nepal from 1951 to 1952 and from 1953 to 1955
Prakash Koirala, Nepalese politician
Raj Ballav Koirala (b. 1982), Nepalese actor
Shashanka Koirala, Nepalese politician
Siddharth Koirala, Nepalese film actor
Sujata Koirala (b. 1954), Deputy Prime Minister of Nepal
Sushil Koirala (1939–2016), Prime Minister of Nepal from 2014 to 2015
Tarini Prasad Koirala (1923–1973), Nepalse politician, journalist and writer
Saradha Koirala, Poet and Writer New Zealand, Australia
utsav koirala, Poet and Writer New Zealand, Australia