Ultrasound 1997–2003 (Chinese: 樂之路) is Taiwanese Mandopop singer-songwriter David Tao's first compilation album. It was released on 8 August 2003 by EMI Music Taiwan. It features four new tracks as well as 11 previously released tracks, from his debut album, David Tao in 1997 to his third album Black Tangerine in 2003.

The track "今天没回家" (Shanghaied) is listed at number 6 on Hit Fm Taiwan's Hit Fm Annual Top 100 Singles Chart (Hit-Fm年度百首單曲) for 2003.