| The Helmarshausen Latin Gospels (12th Century German Manuscript) | | March | 01 | 1959 | June | 30 | 1959 |
| The Henry G. Keller Memorial Exhibition | Link | February | 01 | 1950 | March | 19 | 1950 |
| The History of Japanese Photography | Link | May | 25 | 2003 | July | 20 | 2003 |
| The Hollis French Collection of American Silver | | November | 07 | 1940 | December | 29 | 1940 |
| The Holy Land, Photographs circulated by "Life" Magazine | | March | 04 | 1947 | March | 29 | 1947 |
| The Hudson River School | | January | 23 | 1962 | February | 29 | 1962 |
| The Human Equation | | September | 03 | 1953 | September | 24 | 1953 |
| The Ikle and Jacoby Collection of Laces and Embroideries | | April | 25 | 1962 | June | 03 | 1962 |
| The Impressionist Aesthetic | | August | 10 | 1982 | October | | 1982 |
| The Incas: Photographs circulated by Life Magazine | | October | 03 | 1946 | October | 29 | 1946 |
| The India Early Minshall Collection: Faberge and His Contemporaries | Link | March | 15 | 1967 | January | 21 | 1968 |
| The Invitational: Artists of Northeast Ohio | Link | February | 27 | 1991 | April | 21 | 1991 |
| The J.[eptha] H. Wade Memorial Exhibition | | July | 14 | 1926 | October | 25 | 1926 |
| The Jazz Age: American Style in the 1920s | Link | September | 30 | 2017 | January | 14 | 2018 |
| The Jeanne Miles Blackburn Collection of Manuscript Illuminations | Link | December | 19 | 1999 | February | 27 | 2000 |
| The Jewelry of John Paul Miller | | June | 16 | 2010 | January | 02 | 2011 |
| The Joseph Pennell Memorial Exhibition | | March | 16 | 1927 | April | 13 | 1927 |
| The Kevorkian Foundation Collection of Rare and Magnificent Oriental Carpets | | September | 19 | 1967 | November | 12 | 1967 |
| The Language of Etching: 1510-1665 | | September | 22 | 1992 | January | 07 | 1993 |
| The Last Days of Pompeii: Decadence, Apocalypse, Resurrection | Link | February | 24 | 2013 | July | 07 | 2013 |
