Other
- Harrington–Hollingsworth experiment in hematology
- Harrington & Richardson firearms
- Harington baronets, English title
- Harrington College of Design, Chicago
- Harrington College Icebergs, Canadian ice hockey team
- Harrington Designer Antiques
- Harrington (typeface)
- Harrington rod
- Harrington jacket
- Harrington Park Press
- Harrington's Gerbil
- Harrington's Rat
- Harrington-Wilson 1, galaxy
- SS D. W. Harrington US WWII Cargo ship
- Thomas Harrington Ltd, British coachbuilding business
- Harrington Legionnaire, coach body built by Thomas Harrington Ltd
- 52P/Harrington-Abell, comet
- 3216 Harrington, asteroid
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