Lotofaga is a village on the south coast of Upolu island in Samoa. Lotofaga is also the name of the larger Lotofaga Electoral Constituency (Faipule District) which includes Lotofaga village and two other villages, Vavau and Matatufu.

The villages and Lotofaga Electoral Constituency all come within the larger political district of Atua.

The population of Lotofaga village is 1,089 (2006 Census). The population of Lotofaga Electoral Constituency is 1,865 (2006 Census).