- Babbs Island
- Baker Island
- Blaine Island
- Blennerhassett Island
- Boggs Island
- Broadback Island
- Brooks Island
- Browns Island
- Buckley Island
- Buffington Island
- Bushes Island
- Captain Island
- Cluster Islands
- Coney Island
- Coon Bone Island
- Crab Island
- Eightmile Island
- Eureka Island
- First Brother Island
- Fish Creek Island
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- Gallipolis Island
- Grandview Island
- Grape Island
- Grassy Island - historical
- Griffen Island
- Hall Island - historical
- Hatfield Island
- Herrs Island - historical
- Johnson Island
- The Jug
- Letart Island
- Longs Island
- Lower Twin Island
- Magic Island
- Middle Island
- Mill Creek Island
- Muskingum Island
- Mustapha Island
- Neal Island
- Paden Island
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- Piss Pot Island
- Poplar Island
- Robertson Island
- Scotts Island
- Scout Island
- Seven Islands
- Steer Island
- Towhead Island - historical
- Tyler Island
- Upper Twin Island
- Vienna Island
- Virginius Island
- Wells Island
- Wheeler Islands
- Wheeling Island
- Williamson Island
- Wilson Island
- Witten Towhead
- Wylie Island
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