Suja can be both a given name and a surname. Notable people with this name include:
As a given name Suja Irfan, Bangladeshi cricketer Suja Karthika, Indian actress and dancer Suja Khondokar (1941–1997), Bangladeshi actor Suja Varunee, Indian actress
As a surname Jakub Suja (born 1998), Slovak ice hockey player Mostafa Rashidi Suja (1953–2018), Bangladeshi politician Rao Suja (1439–1515), ruler of the Kingdom of Marwar