Bondi Junction railway station is located on the Eastern Suburbs line, serving the Sydney suburb of Bondi Junction in the Australian state of New South Wales. It is served by Sydney Trains T4 Eastern Suburbs & Illawarra Line services and NSW TrainLink South Coast Line services.

The Eastern Suburbs Railway (ESR) is a commuter railway line in Sydney constructed in the 1970s. It is operated by Sydney Trains and has stations at Martin Place, Kings Cross, Edgecliff and Bondi Junction. In addition, it has dedicated platforms at Town Hall, Central and Redfern stations. All of these stations are underground. The Eastern Suburbs railway connects with the Illawarra line at Erskineville, forming the Eastern Suburbs & Illawarra Line. The line features turnbacks at Central, Martin Place and Bondi Junction. There was also previously a rarely used cross-over at Edgecliff. It operates a service every 3 to 5 minutes during weekday peak hours and 8 to 10 minutes at all other times.