It is of Latin origin, and the meaning of Harmony is "unity, concord."
Harmony, character from TV series "Stargate Atlantis"
Harmony Kendall, character on "Buffy the Vampire Slayer" and "Angel."
Harmony, character in "Allie Finkle" book series
Harmony, protagonist of books "Bumped" and "Thumped"
Perfect Harmony Lee, character from Perfect Harmony, by BarbaraWood
Harmony Biotech, fictional company from Perfect Harmony, by BarbaraWood