The baby name Vasilios appears in baby name data for the United States from 1966 to 2020. It was most popular in 1975 with 45 babies given the name.
In the later years of this period, Vasilios has become less common than it once was.
| Year | Count |
|---|---|
| 1966 | 7 |
| 1967 | 8 |
| 1968 | 7 |
| 1969 | 7 |
| 1970 | 5 |
| 1971 | 19 |
| 1972 | 11 |
| 1973 | 14 |
| 1974 | 30 |
| 1975 | 45 |
| 1976 | 35 |
| 1977 | 13 |
| 1978 | 24 |
| 1979 | 9 |
| 1980 | 35 |
| 1981 | 8 |
| 1982 | 36 |
| 1983 | 9 |
| 1985 | 14 |
| 1986 | 10 |
| 1987 | 8 |
| 1988 | 21 |
| 1989 | 14 |
| 1990 | 17 |
| 1991 | 5 |
| 1992 | 5 |
| 1993 | 9 |
| 1994 | 8 |
| 1995 | 6 |
| 1997 | 5 |
| 1998 | 15 |
| 1999 | 11 |
| 2000 | 19 |
| 2001 | 9 |
| 2003 | 5 |
| 2004 | 6 |
| 2005 | 10 |
| 2006 | 11 |
| 2007 | 7 |
| 2008 | 9 |
| 2009 | 16 |
| 2011 | 10 |
| 2012 | 6 |
| 2013 | 7 |
| 2014 | 5 |
| 2015 | 10 |
| 2016 | 14 |
| 2017 | 16 |
| 2018 | 10 |
| 2020 | 5 |