Unity is oneness. The word unity is used in a variety of ways:

• In mathematics, unity refers to the number one. This also extends to electrical engineering, particularly to audio (see unity gain). Expressed in decibels, unity is 0dB.
• Unity is the name of the belief system held by the members of the Unity Church.
• Unity was a band featuring Pat Dubar of Uniform Choice.
• Unity is an award-winning (BBC Radio 2 Folk Awards) album by John Tams .
• Unity is the second album for Australian band George.
• Unity is also the name of a computer game, currently in development by Lionhead Studios.
• Unity is the name of a state of Sudan

There are several places named Unity in the United States:

• Unity (town), Maine, a town in Waldo County, Maine
• Unity (CDP), Maine, a census-designated place in Waldo County, Maine
• Unity, Kennebec County, Maine, unorganized territory
• Unity, New Hampshire
• Unity, Oregon
• Village of Unity, Wisconsin
• Town of Unity in Clark County, Wisconsin
• Town of Unity in Trempealeau County, Wisconsin
• Unity Township, Pennsylvania
• Unity Village, Missouri
• West Unity, Ohio