Abir Mukherjee (born circa 1974) is a British-Indian author best known for his crime novels. He wrote the Wyndham and Banerjee series set in the British Raj era in India.

Mukherjee's parents moved from Calcutta, India to the United Kingdom before he was born. He grew up in Scotland and now lives in Surrey, England with his wife Sonal and two sons.

Before beginning his writing career, Mukherjee was an accountant for 20 years. In 2013, at age 39, Mukherjee learned that Lee Child did not begin writing until age 40 and was inspired to begin writing himself. He began writing A Rising Man in September of that year, and was motivated to keep going partly by the Telegraph's Harvill Secker Crime Writing Competition which he won the following year. The novel was ultimately published in 2016.

Mukherjee's Wyndham & Bannerjee series is based in Raj-era India. The main protagonists are Calcutta policemen Captain Sam Wyndham and Sergeant Surendranath "Surrender-not" Bannerjee. Mukherjee has stated that this era of colonization in India intrigues him because he did not learn about it in British schooling, and the stories his parents shared about India differed significantly from what he learned in the classroom.

In May 2024, Harvill Secker published Abir Mukherjee's first standalone thriller, Hunted, set during the final week of a toxic presidential campaign and which sees the parents of two political extremists trying to extricate their children from the violence set to occur.