Yuen Long Highway (Chinese: 元朗公路; pinyin: Yuánlǎng Gōnglù; Cantonese Yale: yun4 long5 gung1 lou6) is a Hong Kong road connecting Au Tau in Yuen Long and Lam Tei in Tuen Mun of New Territories. It is part of Route 9. It was completed in July 1993 and provides a continuation of route 9 from Tuen Mun to Yuen Long leading to the Shap Pat Heung Interchange and Pok Oi Interchange.