Nel- names have been quite trendy in Poland and as a result, in 2018, 4 baby girls were given the name Nellie (there is no complete data for 2019 yet) and it was #698 in the girls' ranking. Additionally, there were 2413 Kornelias (#26), 1547 Nelas (#40, this is a short form of names such as Petronela, Aniela, Kornelia or Helena), 213 Nels (#101, Nel is a well-known name in Poland because of a literary character Nel Rowlison of "In Desert and Wilderness" by Henryk Sienkiewicz", 24 Nellas (#218), 20 Nelias (#236), 17 Nellies (Nelly, not Nellie, #253), 13 Nells (#276), 6 Cornelias (#378), 4 Chanels (#458), 4 Nellis (#480) and 2 Anelias (#596).
― Anonymous User 1/12/2020
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Also used in Sweden. It's been in the top 100 for a long time. It was most popular around 2010. [noted -ed]
In 2018, 83 is the most common age for an American (U.S.) Nellie who is registered female with the Social Security Administration. It is the 794th most common female first name for living U.S. citizens.
― Anonymous User 10/5/2018
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The name Nellie was given to 195 girls born in the US in 2015.