Choa Chu Kang Road (Chinese: 蔡厝港路; pinyin: Cài cuò gǎng lù) is a road in Singapore presently in two sections. The first section is a short stretch from Upper Bukit Timah Road and continues through via Bukit Batok Road, providing an access to Choa Chu Kang town from Upper Bukit Timah Road. The second and much longer section starts from Kranji Expressway all the way up through the SAFTI area at Jalan Sungei Poyan, and renamed to Old Choa Chu Kang Road.
Choa Chu Kang Road was originally a continuous road from Upper Bukit Timah Road to the cemetery area near Poyan Reservoir. However, as can be seen from historical maps of Singapore, development of the Choa Chu Kang town resulted in Choa Chu Kang Road being dissected into two sections some time between 1975 and 1984. Parts of the original Choa Chu Kang Road within Choa Chu Kang town is now occupied by the present day roads Choa Chu Kang Terrace and the part of Choa Chu Kang Avenue 1 south of Choa Chu Kang Way.
Old Choa Chu Kang Road leads to a number of military facilities, including Tengah Airbase, Army Logistics Base, Keat Kong Camp, and if counting also Lim Chu Kang Road, also Lim Chu Kang Camp, Murai Camp, and Sungei Gedong Camp.Home Team Academy is also located along Old Choa Chu Kang Road. The eastern end of Old Choa Chu Kang Road (near the interchange with Kranji Expressway) leads to the Sungei Tengah Argotechnology Park, one of the few areas where farming takes place in Singapore.