Analyses of infant and child mortality (ICM) show traditionally a mortality gap between sexes that favors females in Latin America, being magnified to the extent that higher levels of life expectancy are modeled. However, evidence found in Brazil (Wong et al, 2013) shows a different trend, where infant male mortality is lower among girls than boys at early ages. The objective of this study is to evaluate whether the pattern found for Brazil also prevails in other Latin American countries, since they also have shown a steady decline in the ICM levels. Our hypothesis is that in countries where there has recently been a significant reduction in ICM, the gender mortality gap has also reduced. The analysis is based on data from censuses and DHS for recent years, following two stages: (a): to show the trend of ICM from the proportion of surviving children by age of mother. (b): to apply the Brass indirect technique to estimate the MI level by sex, based on Coale-Demeny Model Tables (1966). The findings for the Latin American countries corroborate, to some extent, observed Brazilian trend. The male to female mortality ratio (MFMR) are smaller than those defined by model tables which are still used to define current ICM levels in the Region.