Jalmari Sauli (Jalmari Verner Sauli; August 17, 1889, Hämeenlinna – April 22, 1957) was a Finnish writer and track and field athlete who competed in the 1908 Summer Olympics.
He was born in Hämeenlinna and died in Tampere.
In 1908 he finished seventh in the javelin throw competition and eighth in the freestyle javelin throw event. He also finished seventh in the shot put competition and participated with unknown result in the discus throw event.