U.S. Highway 29 (US 29) in the state of Florida is the westernmost north–south United States Numbered Highway in the state. It runs 43.6 miles (70.2 km) from downtown Pensacola north to the Alabama state line entirely within Escambia County. US 29 runs as a four-lane highway through much of the Florida Panhandle, becoming six lanes through and near several towns. The highway's hidden state road designation is entirely State Road 95 (SR 95).

U.S. Route 29 (US 29), internally designated by the Alabama Department of Transportation (ALDOT) as State Route 15 (SR 15), is a southwest–northeast state highway across the southeastern part of the U.S. state of Alabama. US 29 and SR 15 traverse Alabama in a general northeast–southwest slope. It has never been a major route in the state; its significance was completely overshadowed with the completion of Interstate 65 (I-65) and I-85 during the 1970s. Today, US 29 and SR 15 serve primarily to connect numerous smaller towns and cities in the southwest, south-central, and eastern parts of Alabama.