A vehicle seat partitioning system (1), comprising a partition structure (2), wherein the partition structure (2) is configured to be attached to a first backrest structure (4a) and a second backrest structure (4b) of a vehicle seat unit (3), wherein the first backrest structure (4a) and/or the second backrest structure (4b) are arranged to be foldable between a raised position (P R) and a lowered position (PL) in relation to a common seating structure (5), wherein the partition structure (2) comprises a first side edge (6a) and a second side edge (6b), wherein the first side edge (6a) is configured to be connected to the first backrest structure (4a) and the second side edge (6b) is configured to be connected to the second backrest structure (4b), wherein the system (1) further comprises a first track unit (7a) configured to be arranged on the first backrest structure (4a) and /or a second track unit (7b) configured to be arranged on the second backrest structure (4b), wherein the first side edge (6a) comprises a first connection member (8a) connected to and movably arranged in relation to the first track unit (7a) and /or the second side edge (6b) comprises a second connection member (8b) connected to and movably arranged in relation to the first track unit (7b).