|Alma mater||South Point School (India)|
|Parent(s)||Kaushik Sen (father) and Reshmi Sen (mother)|
|Relatives||Chitra Sen (grandmother) and Shyamal Sen (grandfather)|
Riddhi Sen is an Indian Bengali actor. He is a regular actor of the theatre group Swapnasandhani and is a student of South Point school, Kolkata. In 2010, he received a special talent award from his school for his achievements in the field of theatre.
Sen is the son of Bengali stage and film actor Kaushik Sen and dancer Reshmi Sen and grandson of actress Chitra Sen and Shyamal Sen. Sen has acted on stage from an early age, with his grandmother saying "From a very tender age he is performing at ‘Prachya’, I remember carrying him through the crowds at the age of 3."
- Dushman No. 1 (directed by Suman Mukhopadhyay)
- 2010: Iti 'Mrinalini': An Unfinished Letter...
- 2012: Kahaani. He played the role of Poltu, a chaiwala.
- 2013: Children of War
- 2014: Chirodini Tumi Je Amar 2
- 2015: Open Tee Bioscope
- 2015: Chauranga
- 2015: Load Shedding
- 2016: Chauranga
- 2016: Parched
- 2016: Lion
- Dakghor (directed by Kaushik Sen)
- Banku Babur Bandhu 2006 (directed by Kaushik Sen)
- Bhalo Rakkhosher Golpo (directed by Kaushik Sen)
- Birpurush (2010)
- Macbeth (2012 Bengali theatre, based on Shakespeare's play Macbeth, directed by Kaushik Sen, in this play Sen played the role of one of the three witches).
- In mid-2012 Sen played the role of young Andrea in Anjan Dutt's Bengali theatre adoption of Bertolt Brecht's Life of Galileo.
- "Theatre for a cause". Telegraph Kolkata. 25 November 2008. Retrieved 11 May 2012.
- "South Point prize distribution ceremony document" (PDF). South Point school, Kolkata. Retrieved 11 May 2012.
- "Family drama". India Today. Retrieved 11 May 2012.
- "Chitra Sen: Bengali theatre and acting-Exclusive Interview". Calcuttaweb. Retrieved 11 May 2012.
- "A little twist in 'Kahaani'". Times of India. 24 Oct 2010. Retrieved 11 May 2012.
- "Preview". narthaki.com/. Retrieved 13 May 2012.
- "'Performance speaks louder than star power'". Times of India. 12 April 2012. Retrieved 11 May 2012.
- "Anjan as galileo". Telegraph Calcutta. 19 June 2012. Retrieved 25 June 2012.