M. Ramakrishna, known professionally as Shatru, is an Indian actor who appears and works predominantly in Telugu and Tamil films. He is best known for his roles in the films Krishna Gaadi Veera Prema Gaadha (2016), Rangasthalam (2018), Kadaikutty Singam (2018), and Pushpa: The Rise (2021).

Early life and career
Ramakrishna was born into a Telugu-speaking family to M. Satyanarayana and M. Sarojini Devi in the Sarla village of the Bargarh district in Odisha. He completed a Bachelor's degree in microbiology from Ravenshaw University. Ramakrishna later moved to Hyderabad to pursue his acting career. After starring in several films, including Leader (2010) in brief roles, Shatru had a breakthrough for his portrayal of Ramaraju in Krishna Gaadi Veera Prema Gaadha (2016). Shatru debuted in Tamil films with Kathakali (2016) before starring in Kadaikutty Singam (2018) where he played the antagonist. In a review of the film by the Deccan Chronicle, the reviewer wrote that "Telugu actor Shatru plays the villain and is suited for the role".