At least four ships of the Brazilian Navy have borne the name Amazonas
- Brazilian destroyer Amazonas (1908), a Pará-class destroyer launched in 1908 and stricken in 1931
- Brazilian destroyer Amazonas (1943), an Acre-class destroyer launched in 1943 and stricken in 1973
- Brazilian submarine Amazonas, a Balao-class submarine acquired in 1973 and scrapped in 2001
- Brazilian corvette Amazonas, an Amazonas-class corvette launched in 2009 as Port of Spain for the Trinidad and Tobago Coastguard she was acquired by Brazil in 2012
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.