Other
- The Quagmire, a figurative name of the Vietnam War
- Joshua Quagmire (or JQ), an American cartoonist, best known for Cutey Bunny
- Quagmire, the setting for Ben Dunn's Ninja High School comics, and the title of two mini-series spun off from them
- Quagmire, a black enchantment from the card game Magic: The Gathering that allows creatures with the swampwalk ability to be blocked as though they did not have swampwalk
- Bucky Quagmire, Canadian based singer songwriter
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