| Bratislava IV District | |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Slovakia |
| Subdivision Type1: | Region (kraj) |
| Subdivision Name1: | Bratislava Region |
| Unit Pref: | Metric |
| Area Total Km2: | 97 |
| Population Footnotes: | [1] |
| Population Total: | 105245 |
| Population As Of: | 2024 |
| Population Density Km2: | auto |
| Timezone1: | CET |
| Utc Offset1: | +01:00 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +02:00 |
| Area Code Type: | Telephone prefix |
| Area Code: | 2 |
| Blank Name Sec1: | District code |
| Blank Info Sec1: | 104[2] |
Bratislava IV (Slovak: okres Bratislava IV; Hungarian: Pozsonyi IV. járás) is an okres (district) of Bratislava in the Bratislava Region of Slovakia. It is the largest Bratislava district and covers the north-western parts of Bratislava, including the boroughs of Devín, Devínska Nová Ves, Dúbravka, Karlova Ves, Lamač and Záhorská Bystrica.
It is bordered by the Morava River in the west (which also forms the border with Austria), Malacky District in the north, the Pezinok and Bratislava III districts in the east, Bratislava I district in the south-east, by a short part of Bratislava V district in the south and again by Austria along the Danube river.