Around the globe, Grübel (Grübel 
) is an extremely rare unknown gender given name. Much more prevalently, Grübel is the last name as well as the forename.
Uwe, Klaus, Peter, René, Lilie, Josef, Thilo, Erich, Helga, Heinz, Frank, Martin, Markus, Monika, Moritz, Silvia, Simone, Stefan, Andrea, Katrin, Rainer, Robert, Kevin, Katja, Bruno, Bernd, Marc, Mike, Sven, Kurt, Paul, Ralf, Rico, Dirk, Lisa, Jens, Rudolf, Nino, Emil, Hans, Otto, Maria, Mario, Marco, Mirco, Sarah, Simon, Anton, Elke, and Daniel