This is a list of the National Register of Historic Places listings in Hancock County, Indiana.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Hancock County, Indiana, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map.^[1]

There are 12 properties and districts listed on the National Register in the county. Another 2 properties were once listed but have been removed.

Properties and districts located in incorporated areas display the name of the municipality, while properties and districts in unincorporated areas display the name of their civil township. Properties and districts split between multiple jurisdictions display the names of all jurisdictions.

          This National Park Service list is complete through NPS recent listings posted December 15, 2023.^[2]

Current listings

[3]	Name on the Register[4]	Image	Date listed[5]	Location	City or town	Description
1	Charles Barr House		December 22, 2008 (#08001208)	25 W. Walnut St. 39°47′14″N 85°46′12″W / 39.7872°N 85.76987°W / 39.7872; -85.76987 (Charles Barr House)	Greenfield
2	Rufus and Amanda Black House		September 30, 2014 (#14000802)	222 S200W at Philadelphia 39°46′45″N 85°50′29″W / 39.779167°N 85.841389°W / 39.779167; -85.841389 (Rufus and Amanda Black House)	Sugar Creek Township
3	Browne-Rafert House		September 14, 2015 (#15000595)	534 N. Merrill St., near Fortville 39°56′21″N 85°51′15″W / 39.939167°N 85.854167°W / 39.939167; -85.854167 (Browne-Rafert House)	Vernon Township
4	County Line Bridge		November 25, 1994 (#94001356)	County Road 900E over the Big Blue River, northeast of Morristown 39°42′35″N 85°37′59″W / 39.709722°N 85.633056°W / 39.709722; -85.633056 (County Line Bridge)	Blue River Township	Extends into Rush County
5	Greenfield Courthouse Square Historic District	More images	March 7, 1985 (#85000455)	Roughly bounded by North, Hinchman, South, and Pennsylvania Sts. 39°47′07″N 85°46′10″W / 39.785278°N 85.769444°W / 39.785278; -85.769444 (Greenfield Courthouse Square Historic District)	Greenfield
6	Greenfield Residential Historic District		December 15, 2011 (#11000909)	Roughly bounded by Hendricks, South, and Wood Sts., and Boyd Ave. 39°47′07″N 85°46′23″W / 39.785278°N 85.773056°W / 39.785278; -85.773056 (Greenfield Residential Historic District)	Greenfield
7	Lilly Biological Laboratories		November 23, 1977 (#77000016)	West of Greenfield off U.S. Route 40 39°46′51″N 85°47′51″W / 39.780833°N 85.7975°W / 39.780833; -85.7975 (Lilly Biological Laboratories)	Greenfield
8	Lincoln Park School	More images	June 17, 2009 (#09000424)	600 W. North St. 39°47′09″N 85°46′37″W / 39.785778°N 85.776853°W / 39.785778; -85.776853 (Lincoln Park School)	Greenfield
9	Frank Littleton Round Barn		April 2, 1993 (#93000184)	Near the junction of County Roads 600N and 500W, northeast of Mount Comfort[6] 39°52′22″N 85°53′25″W / 39.872820°N 85.890150°W / 39.872820; -85.890150 (Frank Littleton Round Barn)	Vernon Township
10	Lockheed PV-2 Harpoon No. 37396		May 1, 2009 (#09000234)	3867 N. Aviation Way at the Indianapolis Regional Airport 39°50′37″N 85°54′12″W / 39.843686°N 85.903311°W / 39.843686; -85.903311 (Lockheed PV-2 Harpoon No. 37396)	Buck Creek Township
11	Jane Ross Reeves Octagon House		September 16, 2001 (#01000620)	400 S. Railroad St. 39°53′32″N 85°34′45″W / 39.892222°N 85.579167°W / 39.892222; -85.579167 (Jane Ross Reeves Octagon House)	Shirley
12	James Whitcomb Riley House	More images	September 28, 1977 (#77000017)	250 W. Main St. 39°47′06″N 85°46′24″W / 39.785000°N 85.773333°W / 39.785000; -85.773333 (James Whitcomb Riley House)	Greenfield

Former listings