Tappan Lake

{{For|the lake in New Jersey/New York|Lake Tappan}}

{{Use mdy dates|date=January 2025}}

{{Infobox body of water

| name = Tappan Lake

| image = Tappan Lake (4539109179).jpg

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| location = Harrison County, Ohio,
United States

| coords = {{Coord|40|21|30|N|81|13|34|W|region:US-OH_type:waterbody_source:GNIS|display=inline,title|name=Tappan Lake (Harrison County)}}{{cite gnis|id=1046947|name=Tappan Lake|accessdate=2009-05-04}}

| type = reservoir

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| basin_countries = United States

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| area = {{convert|2350|acre|km2|abbr=on}}

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| elevation = {{convert|892|ft|m|abbr=on}}

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| pushpin_map = Ohio#USA

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| pushpin_map_alt = Location of Tappan Lake in Ohio, USA.

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Tappan Lake, also known as Tappan Reservoir, is a reservoir in Harrison County, Ohio, United States.

The lake covers {{convert|2350|acre|km2}} of water and {{convert|5000|acre|km2}} of surrounding land, as part of the Muskingum Watershed Conservancy District. Normal pool elevation is {{convert|899.3|ft|m|abbr=on}} above sea level. The lake has a {{convert|399|hp}} limit for boats. There are two public launch ramps - one near the roadside rest area on U.S. 250, and the other across from Tappan Marina. A third launch ramp is located inside Tappan Lake Park.[http://www.mwcdlakes.com/tappan.htm Welcome to Tappan Lake. Muskingun Watershed Conservancy District]. Accessed February 14, 2008. {{webarchive |url=https://web.archive.org/web/20080102165411/http://www.mwcdlakes.com/tappan.htm |date=January 2, 2008 }}

It is located between Cadiz and Dennison.{{cite web|title=map of Tappan Lake region (between Cadiz, OH and Dover, OH)|url=https://maps.google.com/maps?ll=40.394673,-81.298828&spn=0.470653,0.740204&t=m&z=10|website=maps.google|accessdate=29 January 2015}} U.S. Route 250 follows Tappan Lake for several miles on a series of causeways built during the construction of the lake in the 1930s.

Tappan Lake took its name from the former community of Tappan, which was inundated with the completion of the lake in 1938.{{cite book|last=Cross|first=Tom|title=Fishing Ohio: An Angler's Guide to Over 200 Fishing Spots in the Buckeye State|url=https://books.google.com/books?id=tua1o8AiyN4C&pg=PA184|year=2008|publisher=Globe Pequot Press|isbn=978-0-7627-4326-1|page=184}} The former town of Laceyville lies beneath the lake.{{cite web | url=http://www.ohioghosttowns.org/harrison-county/ | title=Ohio Ghost Towns | accessdate=14 February 2015}}