Gubacsi Bridge, Road-rail bridge in Budapest, Hungary

Gubacsi Bridge is a pair of six-span lattice steel bridges crossing the Ráckevei-Danube between Budapest's 20th and 21st districts, linking Pesterzsébet with Csepel Island. The northern bridge carries the Soroksári út–Csepel freight railway and a cycle path, the southern one a single lane of road traffic in each direction.

The structure was completed in 1924 under architect Béla Zsigmondy's supervision. After being destroyed during World War II, it was rebuilt in 1947 to restore traffic links.

The bridge takes its name from Gubacsidűlő, the Erzsébetfalva hamlet where the 1872 Gubacsi dam stood. Until 1978 a HÉV suburban train ran across it; the rails were removed in 1984 and replaced by road lanes. Since the southern walkway partly collapsed in July 2025, buses between the two bridgeheads have been free of charge.

The northern section is used for rail freight transport, while the southern part is for vehicles. Visitors crossing this bridge should be aware of the active traffic on both sides.

The bridge carries two separate six-span lattice steel decks: the northern one shared by the HÉV suburban line and the industrial railway, the southern one reserved for road traffic with one lane in each direction. In 2024 about 14 percent of all rail freight traffic affecting the capital crossed it.