Martinsville is a city in Washington Township, Morgan County, Indiana, United States.

Architect Isaac Hodgson designed the courthouse, and it was built by Perry Magnus Blankenship.

From 1888 until 1968, visitors sought out the Martinsville's sanitaria for health benefits from their artesian mineral water.

Over nearly 100 years, almost a dozen sanitaria were in operation for various periods of time, including the first black spa in Martinsville.

Albert Merritt (1871–1958), founder of the Boys' Club in Martinsville, born near Bowling Green, was the son of freedmen.

He worked with the children of Martinsville for fifty years, building a clubhouse on North Marion Street.

Visitors would travel by rail and road to bathe and refresh in the mineral springs and waters.

Many luminaries visited Martinsville in the early 20th century to enjoy the mineral waters and spas for their perceived therapeutic and restorative qualities.

[13] The Morgan County Public Library's Digital Archive has a collection of photographs of Old Hickory furniture including some displays for Marshall Field & Co.[14] In recent years, Martinsville has an array of different businesses, with the courthouse square and downtown area being host to a number of locally owned restaurants, bakeries, and shops, and areas like the Grand Valley Shopping Center and Artesian Square being host to a number of restaurant chains and retail shops.

[16] Historically, Martinsville was the place of some racial controversies, such as the 1968 murder of 20-year-old African American Carol Jenkins, who was stabbed to death with a screwdriver while selling encyclopedias door-to-door.

Jenkins' murder remained unsolved for 33 years until Kenneth Richmond was arrested for the crime.

Richmond was a Hendricks County resident who was passing through Martinsville on the night Jenkins was murdered.

When many citizens contacted the commissioners later with similar feelings to that effect, the project was put on hold.

[18] That year, the Indianapolis Star reported that Martinsville still had a reputation among African Americans as a sundown town.

[22] The climate in this area is characterized by hot, humid summers and generally cool to cold winters.