Marylou \m(a)-ry-lou\ as a girl's name is a variant of Mary (Latin), and the meaning of Marylou is "star of the sea".

The baby name Marylou sounds like Marilou and Marylu. Other similar baby names are Marilu, Marylyn, Marylin, Marlo, Marlow, Marlon, Marylee, Maryjo, Marylea and Maryl.