San Tin Highway (Chinese: 新田公路; pinyin: Xīntián Gōnglù; Cantonese Yale: san1 tin4 gung1 lou6) is a northeast-southwest expressway at San Tin in north-western New Territories of Hong Kong.

Slip roads from San Tin Interchange on to San Sham Road lead 2 km north to Hong Kong's only 24-hour border crossing at the Lok Ma Chau Control Point–Huanggang Port border crossing with Shenzhen in mainland China.

[3] Before their construction, the vast amount of lorries and goods vehicles using the roundabout caused serious traffic congestion, on San Sham Road and occasionally on San Tin Highway.

Before the completion of Tsing Long Highway, the southern end of the Highway connected to Castle Peak Road and Au Tau Interchange.

The interchange near Fairview Park is the roundabout which has the most exits in Hong Kong.