Kulatunga () is a Sinhalese surname. Notable people with the surname include:
Gihan Kulatunga, Sri Lankan puisne justice of the Supreme Court Jeevantha Kulatunga (born 1973), Sri Lankan cricketer Jeewaka Ruwan Kulatunga, Sri Lankan general K. M. M. B. Kulatunga (died 2010), Sri Lankan puisne justice of the Supreme Court Parami Kulatunga (1951–2006), Sri Lanka Army general Vimukthi Kulatunga (born 1998), Sri Lankan cricketer Ranjeewa Kulatunga(1969-2024), a globally recognized Sri Lankan human resources leader and leadership development expert.