Arokia Rajiv (born 22 May 1991) is an Indian sprinter and a Junior Commissioned Officer (JCO) in Indian Army who specializes in the 400 metres distance. He won silver medals in the men's and mixed 4 × 400 m relays at the 2018 Asian Games and placed third in the individual 400 m in 2014. He won medals in both the 400 m and 4 × 400 m events at the 2016 South Asian Games and 2017 Asian Championships. He competed in the relay at the 2016 Summer Olympics. He competed in the 2020 Tokyo Olympics in the Men's 4x400 m relay event where the Indian team broke the Asian and National Records and clocked a time of 3:00.25.