Bukit Panjang LRT Line is a 7.8 km light rail transit system in Bukit Panjang, Singapore. It is the first of Singapore's light rail transit systems to go into operation. The line opened on 6 November 1999 serving 14 stations in the Bukit Panjang area. The terminals for the line are Choa Chu Kang and Ten Mile Junction stations. When the line first went into service, commuters can take the Singapore MRT North-South Line to the Choa Chu Kang MRT Station to connect to the LRT. Since 27 December, the Bukit Panjang MRT Station, which serves as the western terminus of the Downtown Line, becomes an interchange for the LRT line to the MRT.
The Bukit Panjang LRT Line is colour-coded grey.