Meaning and Name Origin
Marylou \m(a)-ry-lou\ as a girls' name is of Latin origin, and the meaning of Marylou is "star of the sea". Marylou is a variant of Mary (Latin): Saint Jerome associated the Virgin's name with the Latin phrase "stella maris". A somewhat irregularly used name for newborns.
Marylou is a very prominent first name for females (#759 out of 4276, Top 18%) but an uncommon last name for both adults and children. (2000 U.S. Census)
Presented below is the birth name popularity of Marylou for girls. Marylou was first listed in 1920-1929 and reached its peak rank of #449 in the U.S. during the years 1930-1939, but is not ranked currently. (2014 Birth Statistics)
Below is a graphed comparison of the popularity of the girl name Marylou and associated names. Popular varying forms of Marylou ranked in the Top 1000 are Mariela, Marilee, Marilyn (#405 the previous year), Marion, Marla, Marlo, Mary (#120), Maryann, Maryjo and Marylin. These girl names were at the top of their popularity during 1940-1949 and have become significantly less widespread since, with forms such as Mariela, Maryann, Maryjo, Marylin and Marylou falling out of style. Marilyn (#405) is the most fashionable name for newborns in this compilation. (2014 Birth Statistics)