Unknown; likely a modern invented name
Keymon is a contemporary American name with no established etymological history. It is likely a creative blend of the prefix 'Key-' with the suffix '-mon', or a phonetic variation of names like Quemon or Kemon. Due to its modern and rare usage, it lacks a traditional meaning.
Fewer than 5 boys were named Keymon in 2025.
US births per 5-year period, 1990–present (SSA data).