Background: Marine fungi are considered as a promising source of pharmacologically important extracts and compounds owing to the new chemical structures that they can synthesize due to the environmental conditions of their habitat. The aim of this work is to evaluate the free radical scavenging capacity of methanolic extracts from marine fungi and their relationship to their total phenolic content. For this, the radical tests ABTS, DPPH, and Galvinoxyl were used, comparing these results with the antioxidant Trolox as reference. The total phenol content was quantified using the Folin-Ciocalteu method. All data were analyzed by ANOVA followed by Tukey's post hoc tests (p