Globally, Cassegrain (Cassegrain 
) is an extremely rare unknown gender first name. Predominantly, Cassegrain is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Cassegrain | Portugal, Australia, Switzerland, United States, France |
Mr, Aline, Alain, Annie, Bruno, Regis, Denis, Danny, Diane, Laura, Loris, Loïc, Lucie, Jacky, Joël, Julie, Teddy, Erika, Herve, Fanny, Flora, Odile, Serge, Simon, Mateo, Manon, Ms, Guy, Luc, Jã, Eva, Marc, Stã, Anne, Paul, Phil, Marina, Remy, Lolo, Loic, John, Jean, Eric, Fred, Yoan, Yves, Maria, Marie, Lise, and Marine