Vlasta Koseová (née Štěpánová, May 21, 1895 in Sedlec - September 29, 1973 in Prague) was the founder of Czech Girl Scouting. In January 1915, the first Girl Scouts were introduced, under her leadership, and shortly thereafter, a Junák section for Guide Education was established. In 1923 she married Dr. Jaroslav Koseho, who was executed in 1942 in Brno . For her work in Scouting, she received top Junák Girl Scouting honors including Order of the Silver Trefoil.