Nikkilä railway station (Finnish: Nikkilän rautatieasema; Swedish: Nickby järnvägsstation) is a railway station located in Nikkilä, the administrative center of the municipality of Sipoo, Finland. It is situated on the railway line that connects Kerava and Porvoo.
The station was opened in 1891 upon the completion of the private railway line between Kerava and Porvoo. The original station building, a wooden structure designed by architect Knut Nylander, was completed in the same year. The station served as a transit point for both passengers and goods for several decades.
Regular passenger traffic at Nikkilä railway station, and along the entire Porvoo line, ceased in 1981 due to declining ridership and the prioritization of road transport. Following the termination of scheduled passenger services, the station remained in use for freight transport and as a stop for heritage trains operated by the Porvoo Museum Railway (Porvoon Museorautatie).
The railway line passing through Nikkilä continues to be utilized for freight traffic, particularly serving the industrial areas of Kilpilahti (Sköldvik). In recent years, Nikkilä railway station has been the focus of regional transport planning. There are ongoing proposals by the Helsinki Regional Transport Authority (HSL) and the municipality of Sipoo to reopen the section between Kerava and Nikkilä for commuter rail traffic to support the area's urban development. While the project has been included in long-term strategic plans, the resumption of regular passenger services is subject to future funding and infrastructure upgrades.