Noble friend or elf friend
Alvie is a diminutive form of names starting with the Germanic element 'alf' (elf) or 'adal' (noble), such as Alvin or Alva. It emerged as a standalone nickname-style name in the late 19th century. While historically more common for boys, its soft ending has led to occasional use for girls.
Less common today
Alvie isn't in the latest US Top 1000. It last peaked at #5,523 in 1991.
American character actor known for Green Acres
Protagonist of the film Annie Hall (often spelled Alvy) Β· Annie Hall
US births per 5-year period, 1990βpresent (SSA data).