Lou reached its apex position of #554 in the U.S. in the 1880s, but is not in the list at the moment. (TOP BABY NAMES, 2015)
Which version is better?with its source forms and related boy names. Lew, Lewis (#569 THE PREVIOUS YEAR), Louie (#967), Louis (#297) and Luis (#106) are the prominent varying forms of Lou. These forms of Lou were favored by parents during 1880-1889 (MEDIAN #332) and have become significantly less popular since (#989, 76% LESS USAGE).
Lou▼ is alike in pronunciation to La-, Le, Le-, Lea, Lee▼, Leo, Lleu, Loew, Loewe, Loewy, Lowe, Loy and Lugh. Other recommended names are Lon▼ and Lot. These names tend to be less frequently used than Lou.See names in meaning and etymology.