| Urduliz | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Basque Country |
| Pushpin Map Caption: | Location of Urduliz within the Basque Country |
| Pushpin Map1: | Spain |
| Pushpin Map Caption1: | Location of Urduliz within Spain |
| Subdivision Type: | Country |
| Subdivision Name: | Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Basque Country |
| Subdivision Type2: | Province |
| Subdivision Name2: | Biscay |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Mungialdea |
| Coordinates: | 43.3728°N -2.9492°W |
| Elevation M: | 75 |
| Area Total Km2: | 7.8 |
| Established Title: | Founded |
| Population Demonym: | Basque: urduliztarra |
| Population Density Km2: | auto |
| Blank Name Sec1: | Official language(s) |
| Blank Info Sec1: | Basque Spanish |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 48610 |
| Area Code Type: | Dialing code |
| Leader Title: | Mayor |
| Leader Name: | Javier Bilbao |
| Leader Party: | EAJ-PNV |
Urduliz (Spanish; Castilian: Urdúliz) is a municipality located in northern Biscay, Spain. While connected to Greater Bilbao both by the Bilbao metro and BizkaiBus, the municipality is part of Mungialdea. The municipality shows a mixture of industrial and rural qualities, being divided in three separate villages or neighbourhoods. According to the 2019 census, it has 4,456 inhabitants.