What does Allan mean?
Allan \a(l)-lan\ as a name for boys is of Old German and Gaelic derivation, and Allan means "precious". Allan is a variant of Alan (Old German): from Adal. Allan is also a variant of Allen (Gaelic, Old German). See also Elvis.
Allan is a very prominent first name for men (#250 out of 1220, Top 20%) and also a very prominent last name for all people (#3090 out of 150436, Top 2%). (2000 U.S. Census)
Shown below is the baby name popularity of Allan for boys. Allan reached its top rank of #147 in the U.S. during 1940-1949, and is currently at #720. (2014 Birth Statistics)
Al, Alan (#170 in 2014), Allen (#367), Allie, Allyn and Elvis are the popular related forms of Allan (#720 in 2014) ranked in the Top 1000. These boy names were at the top of their popularity during the years 1950-1959 (usage of 0.5363%) and have become significantly less popular since (usage 0.249%, down 53.6%), with the versions Al, Allan, Allen, Allie and Elvis becoming somewhat outmoded. Alan (#170) is the most contemporarily stylish birth name in this list. Below is a graphed comparison of the popularity of the boy name Allan and corresponding names. (2014 Birth Statistics)
Allan▼ is pronounced similarly to Aloin, Aluin, Alwin, Alwyn, Eilan, Elan, Elian, Ilan and Wylan. Other recommended similar baby names are Alban, Aldan, Alvan, Arlan and Aslan. These names tend to be less commonly used than Allan.