Miss Piauí is a Brazilian Beauty pageant which selects the representative for the State of Piauí at the Miss Brazil contest.

The pageant was created in 1956 and has been held every year since with the exception of 1990-1991, 1993, and 2020.

The pageant is held annually with representation of several municipalities.

Since 2025, the State has no regional director.

Piauí has won only two crowns in the national contest: with Monalysa Maria Alcântara Nascimento, from Teresina, in 2017; and 2025 with Maria Gabriela Silva Lacerda, also from Teresina.