Actinolite ( ) is a compact rural community within geographic Elzevir Township in the Municipality of Tweed, Hastings County in Central Ontario, Canada.
A branch line of the Bay of Quinte Railway (BQR) was built through Actinolite opening in 1903 that connected the BQR main line to the southeast to the Central Ontario Railway to the northwest. The line was abandoned in 1935. Ontario Highway 7 arrived in 1932.