| Bagan Datuk | |
| Other Name: | Pekan Baru |
| Translit Lang1: | Others |
| Translit Lang1 Type1: | Jawi |
| Translit Lang1 Info1: | Malay: {{Script|Arab|باݢن داتوق |
| Translit Lang1 Type2: | Chinese |
| Translit Lang1 Type3: | Tamil |
| Translit Lang1 Info3: | Tamil: பாகான் டத்தோ Pākāṉ Ṭattō |
| Nickname: | The 'Cowboy' Town |
| Settlement Type: | Town and district capital |
| Pushpin Map: | Malaysia |
| Subdivision Type: | Country |
| Subdivision Name: | Malaysia |
| Subdivision Type1: | State |
| Subdivision Name1: | Perak |
| Subdivision Type2: | District |
| Subdivision Name2: | Bagan Datuk District |
| Government Type: | Municipality (Hilir Perak) |
| Leader Title: | District Officer (Teluk Intan) |
| Leader Name: | Haji Zamari Mohd Ramli |
| Leader Title1: | Mayor |
| Leader Title2: | Member of Parliament |
| Leader Name2: | YAB Ahmad Zahid Hamidi (BN) |
| Established Title: | Established |
| Established Date: | 1896 |
| Founder: | Tok Kelah |
| Population As Of: | 2011 |
| Timezone: | MST |
| Utc Offset: | +8 |
| Coordinates: | 3.9833°N 147°W |
| Postal Code Type: | Postal code |
| Postal Code: | 361xx |
| Area Code: | 05 |
| Number Plate Prefix: | A |
Bagan Datuk (formerly spelled Bagan Datoh), is a town and mukim in Bagan Datuk District, Perak, Malaysia.
Bagan Datuk is the most southwest district in the state of Perak. It is about 130 km (by car) from the state capital Ipoh and 46 km from Teluk Intan. Across the Bernam River is Sabak, Selangor.
The main economic activity in Bagan Datuk is fishing. There are also, however, many coconut plantations nearby, visible along the road to Bagan Datuk from Teluk Intan.
There are also a few fishing villages scattered around Bagan Datuk, for example Sungai Tiang and Sungai Burong, and their corresponding seaside village Bagan Sungai Tiang and Bagan Sungai Burong. On the way from Teluk Intan there will be a few small township which are Hutan Melintang, Selekoh and Simpang Tiga. One popular spot for angling is Sungai Dulang, situated about 8 km from Bagan Datuk. It is famous for lobster fishing where an angler's night spent there could harvest up to 5 kilograms of lobsters.
Highway 69 is the main ingress to Bagan Datuk town. KTM Intercity does not serve the area.
Bagan Datuk is represented in the Dewan Rakyat of the Malaysian Parliament by Deputy Prime Minister Dato' Seri Ahmad Zahid Hamidi from UMNO.
On the state level, Bagan Datuk provides two seats to the Perak State Legislative Assembly:
Rungkup is currently held by Shahrul Zaman bin Yahya from UMNO while Hutan Melintang is currently held by Wasanthee Sinnasamy from PKR.