| En Name: | Gus-Zhelezny |
| Ru Name: | Гусь-Железный |
| Map Label Position: | bottom |
| Federal Subject: | Ryazan Oblast |
| Adm District Jur: | Kasimovsky District |
| Inhabloc Cat: | Urban-type settlement |
| Pop 2010Census: | 2115 |
| Date: | July 2020 |
Gus-Zhelezny (Russian: Гусь-Желе́зный, lit. iron goose) is an urban locality (an urban-type settlement) in Kasimovsky District of Ryazan Oblast, Russia. Population:
It was founded in the 18th century on the Gus River's bank.
The main point of interest of Gus-Zhelezny is the 19th century Russian orthodox Trinity Cathedral, built in a rare for Russia Gothic Revival style with elements of neobaroque and neoclassicism.