All around the world, Regul (Regul 
) is a very rare epicene first name. The first name Regul is characteristic of India, where it is an extremely rare epicene name, and China, where it is an extremely rare boy's name. More prevalently, Regul is the last name as well as the forename.
Mr, Joan, Nick, Eric, Erik, Hans, Maria, Marie, Marti, Suter, Steve, Chris, Carol, Clara, Bernd, Kevin, Klaus, Paula, Peter, Reist, Regli, Ryser, John, David, Lisa, Roth, Ms, Ann, Amy, Pat, Ron, Jan, Jon, Tom, Top, Eva, Marc, Mary, Anne, Ania, Arne, Adam, Brad, Paul, Ratz, Ralf, Rolf, Dirk, and Dinah