Ranjit or Renjith may refer to:

Religion

• Anton Ranjith Pillainayagam (born 1966), Sri Lankan Tamil Catholic priest, Auxiliary Bishop of the Archdiocese of Colombo
• Malcolm Ranjith (born 1947), Sri Lankan Cardinal of the Catholic Church, Archbishop of Colombo

Politics

• Ranjith Aluvihare (born 1958), Sri Lankan politician
• Ranjith Bandara (born 1961), Sri Lankan politician
• Ranjith Siyambalapitiya, Sri Lankan Minister of State Revenue and Finance and Deputy Minister of Finance and Planning

Arts

• Ranjith (director), a popular Indian screenwriter and film director in Malayalam cinema
• Ranjith (singer), Indian playback singer who originally hails from Kerala
• Ranjith (actor), character artist who appears in Tamil, Telugu and Malayalam language films
• Ranjith Sankar, Indian screenwriter and film director in Malayalam cinema
• Ranjith Bajpe Tulu Movie Director known for First International Tulu Movie Nirel and Tulu Movie Dhand
• Pa. Ranjith, Tamil film director

Sports

• Ranjith Amunugama (born 1969), former Sri Lankan cricketer
• Ranjith Kumar Jayaseelan, Indian Athlete
• Ranjith Madurasinghe (born 1961), Sri Lankan cricketer
• Renjith Maheshwary (born 1986), Indian triple jumper