The purpose of this paper is to estimate the association between Protestantism and child mortality for Brazil. This paper employs data from the 1991, 2000, and 2010 Brazilian censuses. The association between Protestantism and child mortality was estimated using a conventional negative binomial regression model for women between the age of 20 and 34 years. This paper finds that the death rate of children born to Protestant mothers is around 5% lower compared to non-Protestant mothers, even after controlling for an extensive array of demographic and social characteristics. When Protestants are split into 'Traditional' and 'Pentecostal' groups, we find that the child mortality rate is substantially lower for Traditional Protestants. Our study contributes to the literature by providing recent empirical results on the association between child mortality and Protestantism in Brazil.