Meaning and name origin
Nilsa \n(i)-lsa, nil-sa\ as a girl's name is of Scandinavian origin. Nilsa is a variant of Nilsine (Scandinavian): feminine of Nils or Neil (Irish, Gaelic) "champion".
Nilsa is a very popular first name for females (#1911 out of 4276, Top 45%) but an uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is the baby name popularity of the name Nilsa for girls (2014 statistics).
Nilsa is also pronounced similarly to Nelsea and Nelsy. Other suggested similar baby names are Ailsa, Nila, Nilda, Nissa and Nitsa. These names tend to be less commonly used than Nilsa.