Ulu Paku is an area the small district of Spaoh, Sarawak, Malaysia. It is a primarily native Iban area. It is made up of 11 Iban longhouses (not including Anyut area). The lounghouses here, despite being called longhouses are relatively short with the longest is only around 25 biliks or houses. The longhouses are:
- Kerangan Pinggai
- Anyut (sub-area of Ulu Paku)
- Samu
- Jukun
- Sapuna
- Nanga Bong
- Danau
- Senunok
- Penom
- Lubuk Kelampu (Meroh Ili)
- Nanga Paun (Meroh Ulu)