Although the name Flossmooris derived from the Scottish words floss, meaning "dew on the flowers," and moor, meaning "gentle rolling countryside," the Village's origins are Native American and German. First used by Native Americans as a winter hunting site, Flossmoor later attracted German immigrants in search of fertile farmland. It wasn't until 1903 when the Illinois Central Railroad entered Flossmoor that the village began to grow.

For the first twenty years of its existence, Flossmoor was sparsely populated, never having a population of more than seventy-five people. Nevertheless, its reputation as a quiet cultural retreat from the fast pace of the city was growing, and by the 1920's Flossmoor was considered to be one of the most desirable places to live and visit in the Chicago area.

Today, Flossmoor offers residents the same qualities that first attracted its first settlers: a sense of community, excellent recreational activities, safe neighborhoods and quality education.