Chimaji Ballal (1707–1740), commonly referred to as Chimaji Appa or Bhau, was the son of Balaji Vishwanath Bhat and the younger brother of Bajirao Peshwa of Maratha Empire. He was an able military commander who liberated the western coast of India from Portuguese rule. The high watermark of his career was the capture of Vasai fort from the Portuguese in a hard-fought battle. He was known to run strategy for the Maratha Empire and was known to plan all the battles for Bajirao.