Richard Gerard Long, 4th Viscount Long CBE (born 30 January 1929, in London) is a British peer and former Conservative politician.
The second son of Richard Long, 3rd Viscount Long, he was educated at Harrow and served with the 1st and 2nd Battalions of the Wiltshire Regiment from 1947–49. His elder brother, Walter Reginald Basil, had died in Greece in 1941 during World War II and Long succeeded to his father's title in 1967.
In 1974, he entered politics as an Opposition Whip and was then a Lord-in-Waiting (senior Government whip) from 1979 to 1997.
Married three times, he lived for many years at The Island, Newquay, Cornwall, a house on a rock linked to the mainland by a private suspension bridge. He is the father of the late actress, Charlotte Long.