| K. U. Arunan | |
| Birth Date: | 24 September 1947 |
| Office1: | Member of Legislative Assembly |
| Term Start1: | 2016 |
| Term End1: | May 2021 |
| Constituency1: | Irinjalakkuda |
| Predecessor1: | Thomas Unniyadan |
| Successor1: | R. Bindu |
| Party: | Communist Party of India (Marxist) |
| Spouse: | Smt. Manjula |
| Children: | Two daughters |
| Nationality: | Indian |
Prof. K. U. Arunan is the member of 14th Kerala Legislative Assembly.[1] He represented Irinjalakkuda constituency and belongs to Communist Party of India (Marxist).[2]
In 2017, Communist Party of India (Marxist) Thrissur district leadership had sought an explanation from him for inaugurating a program organized by the Rashtriya Swayamsevak Sangh.