4月25日大桥（葡萄牙语：Ponte 25 de Abril）是一座横跨塔霍河的悬索桥，连接葡萄牙首都里斯本和对岸的阿尔马德。全长2,277.64公尺，上层六线行车，下层有双轨铁路。此桥外形不但类似美国旧金山的金门大桥，两条桥的承建商又是同一家公司。

1966年8月6日通车，原名萨拉查大桥（葡萄牙语：Ponte Salazar），石竹花革命后改名。1999年加设火车月台。

The 25 de Abril Bridge (Ponte 25 de Abril, 25th of April Bridge, Portuguese pronunciation: [ˈpõt(ɨ) ˈvĩt i ˈsĩku ðɨ ɐˈβɾiɫ]) is a suspension bridge connecting the city of Lisbon, capital of Portugal, to the municipality of Almada on the left (south) bank of the Tejo river. It was inaugurated on August 6, 1966, and a train platform was added in 1999. Because it is a suspension bridge and has similar coloring, it is often compared to the Golden Gate Bridge in San Francisco, US. It was built by the American Bridge Company which constructed the San Francisco–Oakland Bay Bridge, but not the Golden Gate. With a total length of 2,277 m, it is the 27th largest suspension bridge in the world. The upper deck carries six car lanes, while the lower deck carries two train tracks electrified at 25 kV AC. Until 1974, the bridge was named Salazar Bridge. The name "25 de Abril" commemorates the Carnation Revolution.