Jens Naessens (born 1 April 1991) is a Belgian professional footballer who plays as a forward for Roeselare.
On 10 October 2020, he joined Italian Serie C club Foggia. On 4 November 2020 in a game against Casertana, he ruptured his achilles tendon.
His contract was terminated on 1 December 2020. Five months later he signed a one-year contract with Lierse Kempenzonen.
On 27 June 2023, Royal Knokke F.C. announced the signing of Naessens, on a two-year contract.