- A weight division in professional boxing having an upper limit of 126 pounds (56.7 kilograms), between junior featherweight and junior lightweight.
- A boxer competing in this weight division.
- A similar weight division in other sports, such as weightlifting.
- A contestant in this weight division.
- A person or thing of little weight or size.
- An insignificant person: a political featherweight.
- Of or relating to featherweights.
- Unimportant; trivial: featherweight political issues.