K. S. Rao may refer to:
Kakarla Subba Rao, Indian radiologist Karnad Sadashiva Rao, Indian freedom fighter K S Rao Road, Mangalore, Karnataka, India Katta Subba Rao, Indian film director Kavuri Samba Siva Rao, Indian politician, engineer and industrialist Kitty Shiva Rao, Montessori teacher and later member of the All India Women's Conference Koka Subba Rao, former chief justice of India