Christoffer Carlsson (born August 28, 1986, in Halmstad) is a Swedish criminologist and writer, best known for the crime novels about Leo Junker (2013–2017) and the ongoing Hallandsviten ("Halland suite"), which includes Under the Storm, 2024 (Järtecken, 2019), Blaze Me a Sun, 2023 (Brinn mig en sol, 2021) and Levande och döda, 2023.

In the spring of 2016, Carlsson wrote a research report on exit processes from violent extremism, published by the Institute for Futures Studies.

[7] The last part in the Leo Junker series, Den tunna blå linjen ("The Thin Blue Line"), was nominated for the Best Swedish Crime Novel Award in 2017.

The sequel, Brinn mig en sol (Blaze Me a Sun), was released in March 2021 and deals with the murder of Olof Palme.

Levande och döda was also nominated for Book of the Year (2023) and in December 2023 received the Best Swedish Crime Novel Award.