With very limited exceptions, the answer is no. The open meeting law
prohibits governmental bodies from using secret ballots to determine any
election or other decision of the body unless such use is specifically
authorized by statute. Wis. Stat. sec. 19.88(1). Section 19.88(1)
specifically allows a governmental body to use secret ballots to elect
the body’s officers. For example, a common council may use secret
ballots to elect the council president, provided council rules do not
prohibit such use.