Meaning and name origin
Nessie \n(es)-sie\ as a girl's name is of Greek origin, and the meaning of Nessie is "lamb". Diminutive of Agnes. Also the name in cryptozoology, of the purported monster in the Loch Ness in the Scottish Highlands, which derives its name from Scottish Gaelic Loch Nis.
For more information, see also the related girl name Vanessa.
There is 1 masculine form of Nessie: Chessie.
Nessie is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the girl name Nessie and its variant forms. Popular variation forms ranked in the Top 1000/100 are Vanessa (#171), Neta and Agnes. (2014 statistics).
Nessie is also pronounced similarly to Nesi, Nessah and Nessy. Other suggested similar baby names are Bessie▼, Jessie▼, Kessie, Nelsie and Tessie▼. These names tend to be more commonly used than Nessie.