K. P. Nambiathiri is an Indian cinematographer who has worked in a number of 3-D films.

Later he worked for a brief period at Doordarshan Kendra, Chennai as a film processor.

Nambiathiri began his feature film career as a director of photography, with Lal Salam, directed by Venu Nagavally.

He had also worked as Director of Photography on the Tamil film Eeramana Rojave in 1985.

He has worked in over 65 feature films across Malayalam, Tamil, Telugu, Kannada and Hindi.