Keilor Plains railway station is located on the Sunbury line in Victoria, Australia. It serves the western Melbourne suburb of St Albans, and opened on 27 January 2002.

The Sunbury line is a commuter railway line in the city of Melbourne, Victoria, Australia. Operated by Metro Trains Melbourne, it is the city's fifth longest metropolitan railway line at 40.3 kilometres (25.0 mi). The line runs from Flinders Street station in central Melbourne to Sunbury station in the north, serving 18 stations via North Melbourne, Sunshine, St Albans, and Watergardens. The line operates for approximately 19 hours a day with 24 hour service available on Friday and Saturday nights. During peak hour, headways of up to 5 minutes are operated with services every 20–30 minutes during off-peak hours. Trains on the Sunbury line run with a two three-car formations of Comeng or Siemens Nexas trainsets.