Leon Wetmański (10 April 1886 - 1941) was a Polish Catholic auxiliary Bishop of the Płock diocese who was killed in Soldau concentration camp.
Eventually he was admitted to the Higher Theological Seminary in Płock and on 23 June 1912 he was ordained as a priest.
[3][4] Due to World War I, he could not immediately return to Poland after graduation, so he remained in St. Petersburg, where he helped refugees by organizing an orphanage.
He engaged in charity work, opening a canteen that served 500 lunches daily free of charge.
Initially he was released, and he went back to work, but he was re-arrested in 1940 and sent to Słupno and then to Soldau concentration camp, where he was put in a cell with other priests.