Marilou \m(a)-ri-lou\ as a girl's name is a variant of Mari (Welsh). See for meaning of Marilou.

The baby name Marilou sounds like Marilu and Marylou. Other similar baby names are Marilda, Marilee, Marion, Marilla, Mariko, Marilis, Marilyn, Marilin, Marlo, Marlow, Marlon and Marylu.