Noble or defender of mankind
Alesa is primarily considered a variant of Alicia or Alexandra. As a derivative of Alicia, it shares the Germanic roots meaning noble. As a variant of Alexandra, it stems from the Greek name Alexandros, meaning defender of men.
Less common today
Alesa isn't in the latest US Top 1000. It last peaked at #4,873 in 1991.
US births per 5-year period, 1990βpresent (SSA data).