Nina Pacari (Kichwa nina "fire", paqariy "to appear, dawn"), born as María Estela Vega Conejo[1] (born 9 October 1961 in Cotacachi, Imbabura) is a Kichwa politician, lawyer and indigenous leader from Ecuador.

At the age of 24, she changed her Spanish name officially to the Kichwa Nina Pacari.

Nina Pacari worked as a lawyer for the Federación de los pueblos Kichwa de la Sierra Norte del Ecuador (FICI), an organization in Imbabura which is now a member of ECUARUNARI.

In the uprising of 1990 she supported indigenous communities in Chimborazo and participated in the negotiations with the government.

In August 1998, she was the first indigenous woman to be elected to the Ecuadorian parliament, as a member of the newly established Pachakutik movement.