The Baguashan Tunnel (Chinese: 八卦山隧道), on Provincial Highway No.

76, Taiwan, transverses Baguashan (八卦山) between Lincuo IC.

The length of the north tube for westbound traffic is 4,928 m (3.062 mi).

The length of the south tube for eastbound traffic is 4,935 m (3.066 mi).

It was the longest highway tunnel in Taiwan when opened to traffic in April 2005, until the top rank moved to Hsuehshan Tunnel in National Highway No.