Lak Si Station (Thai: สถานีหลักสี่) is a group of railway stations in the area of Bangkok's Lak Si district.

Lak Si station opened in 1898 as part of Thailand's first railway between Bangkok and Ayutthaya.

[1] The original station structure was demolished in 1990 during the construction of the failed Hopewell BERTS project.

[2][3] The ground-level station closed on 19 January 2023 and long-distance trains on the Northern and Northeastern lines stopped operating from the ground-level station entirely.

[4] On 21 November 2023 it became an interchange station to the Pink Line monorail.