The Cacheu River Mangroves Natural Park (Portuguese: Parque Natural dos Tarrafes do Rio Cacheu) is a national park[2] situated on the Cacheu River in Guinea-Bissau.

Under the protection of mangroves, the reproduction of fishing resources and the preservation of the diversity of flora and fauna are ensured.

The park provides a home for many migratory birds in the region.

[4] In 2022, the IPCC Sixth Assessment Report included Cacheu River Mangroves Natural Park in the list of African natural heritage sites which would be threatened by flooding and coastal erosion by the end of the century, but only if climate change followed RCP 8.5, which is the scenario of high and continually increasing greenhouse gas emissions associated with the warming of over 4 °C.,[5] and is no longer considered very likely.

[8] Even if the warming is limited to 1.5 °C, global sea level rise is still expected to exceed 2–3 m (7–10 ft) after 2000 years (and higher warming levels will see larger increases by then), consequently exceeding 2100 levels of sea level rise under RCP 8.5 (~0.75 m (2 ft) with a range of 0.5–1 m (2–3 ft)) well before the year 4000.