| B. S. Lokanath | |
| Birth Date: | c. 1937 |
| Birth Place: | Bangalore, Karnataka |
| Death Date: | 9 December 2011 |
| Death Place: | Chennai, India |
| Othername: | Loknath, Lokanathan |
| Occupation: | cinematographer |
| Years Active: | 1971 - 1985 |
| Spouse: | R.L.Radha |
| Children: | B. L. Srinivas, B.L.Sanjay |
B. S. Lokanath (c. 1937 – 2011) was an Indian cinematographer who worked in Tamil, Telugu, Kannada and Hindi films. He is well known as the cinematographer of K. Balachander and has worked in 55 films with him.[1] During his career, he won the National Film Award for Best Cinematography for Apoorva Raagangal (1975) and the Tamil Nadu State Film Award for Best Cinematographer for Ninaithale Inikkum (1979).[2] He died of a heart attack in Chennai on 9 December 2011.