| Honorific-Prefix: | The Most Honourable |
| The Marquess of Reading | |
| Office: | Member of the House of Lords Lord Temporal |
| Term Start: | 19 September 1960 |
| Term End: | 2 July 1980 Hereditary Peerage |
| Predecessor: | The 2nd Marquess of Reading |
| Successor: | The 4th Marquess of Reading |
| Birth Date: | 8 March 1916 |
| Parents: | Gerald Isaacs, 2nd Marquess of Reading Hon. Eva Violet Mond |
| Spouse: | Margot Irene Duke |
| Issue: | Simon Rufus Isaacs, 4th Marquess of Reading Lady Jacqueline Rufus Isaacs |
Michael Alfred Rufus Isaacs, 3rd Marquess of Reading (8 March 1916 – 2 July 1980) was an English aristocrat and banker.
He was born in 1916. His father was Gerald Rufus Isaacs, 2nd Marquess of Reading (1889–1960),[1] [2] and his paternal grandfather was Rufus Isaacs, 1st Marquess of Reading (1860–1935).[1] His mother was Eva Violet Mond (1895–1973),[1] [2] daughter of Alfred Mond, 1st Baron Melchett (1868–1930)[1] and Violet Mond, Baroness Melchett (1867–1945). Eva Violet Mond's grandfather Ludwig Mond (1839–1909), chemist and industrialist, created the Mond process to extract and purify nickel.
He became the 3rd Marquess of Reading after his father's death in 1960.
He was a member of the London Stock Exchange.[2]
He was married to Margot Irene (née Duke).[1] They had a son, Simon Rufus Isaacs, 4th Marquess of Reading (born 1942), and a daughter, Lady Jacqueline Rosemary Margaret Rufus Isaacs, who married Sir Mark Wilfrid Home Thomson, 3rd Baronet (born 1939).[1]
He died in 1980,[1] and Lady Reading lived until 2015.[3]