Krenkel is a German surname of:
Ernst (Teodorovich) Krenkel (Russian: Эрнст Теодо́рович Кре́нкель, also German: Ernst Theodorowitsch Krenkel; 1903, Tartu –, Moscow), Baltic German Russian/Soviet Arctic explorer, and doctor of geographical sciences
Roy Gerald Krenkel, "RGK" (1918, ? – 1983), American illustrator
Werner A. Krenkel (born 1926, Altmittweida, Saxony), German classical philologist
Nate Krenkel (born 1973, ?), American Sony publishing executive
Robert "Bob" Krenkel (born 1948), American Jazz Musician/Recording Artist