Yenagoa is a Local Government Area and capital city of Bayelsa State, Southern Nigeria. It is located at the Niger-Delta region of the country at coordinates 4°55′29″N 6°15′51″E / 4.92472°N 6.26417°E / 4.92472; 6.26417.

The LGA has an area of 706 km² and an estimated population of 798,466 at 2024.

The postal code of the area is 561.

The Ijaws form the majority of the Local Government Area. English is the official language, but Epie-Atissa language is one of the local languages spoken in Yenagoa, others such as Ekpetiama, Gbarian, Buseni and Zarama are Ijaw dialect in Yenagoa LGA.

Bayelsa Airport (Bayelsa International Airport) is an airport located in the Bayelsa State capital of Yenagoa, southern Nigeria. Yenagoa Bayelsa Airport received its first aircraft arrival on February 14, 2019.

Yenagoa is the home of Bayelsa United, a men's association football club that plays in the second-tier Nigeria National League, and Bayelsa Queens, a women's football club in the NWFL Premiership. The two clubs won the 2021 Aiteo Cup for men and women respectively. The men's match took place at the new Samuel Ogbemudia Stadium in Benin City, Benin. Bayelsa United defeated Nasarawa United 4–3 on penalties after the regular period and added time had ended 2–2.

Yenagoa experiences unpleasant weather all year round, with the wet season being warm and cloudy and the dry season being hot and generally cloudy. The average annual temperature fluctuates between 71 °F and 87 °F, rarely falling below 63 °F or rising over 90 °F.

It is situated in an area of swamps and mangrove tropical rainforest.