Estádio Antônio R. Guimarães, Football stadium in Vila Aparecida, Santa Bárbara d'Oeste, Brazil

Estádio Antônio Lins Ribeiro Guimarães is a football ground on Rua 13 de Maio in Vila Aparecida, Santa Bárbara d'Oeste, home of União Agrícola Barbarense. Its capacity is 14,914, and the ground was enlarged in 1996 for the Paulista third division and national tournaments. The club is nicknamed Leão da 13 after the street address.

The stadium was inaugurated on 22 May 1921 with a friendly match between União Barbarense and Concórdia of Campinas, which the hosts won 3-1; Mané de Campos scored the first goal. In 1954 the club obtained the deed to the land from Usina Santa Bárbara. It was expanded in 1996 for the Paulista third division and national tournaments, and in 2016 it was pledged in a labour court case over debts of R$ 2.7 million.

The club's nickname, Leão da 13 (Lion of 13th Street), comes from its address on Rua 13 de Maio in the Vila Aparecida neighbourhood. The ground is also called Toca do Leão (Lion's Den), a name coined by radio commentator Natale Giacomini after a 2.5-metre lion sculpture kept at the stadium.

The stadium is on Rua 13 de Maio in the Vila Aparecida area of Santa Bárbara d'Oeste, not in São Paulo city. The ground holds 14,914 people, so arrive early on match days. In 2020 it hosted Capivariano matches while that club's own ground was closed, and it staged Group 7 games of the 2020 Copa São Paulo de Futebol Júnior.

The nickname "Toca do Leão" was coined by radio commentator Natale Giacomini after a 2.5-metre lion sculpture kept at the ground. The stadium is on Rua 13 de Maio, which gave the club its other nickname, Leão da 13. In 2021 a court-ordered auction drew no bids for the ground.