Ontario Schools
- Halton District School Board
- Halton Hills Christian School
- Hambourg Conservatory Of Music
- Hamilton District Christian High School
- Hamilton Wentworth District School Board
- Hammarskjold High School
- Harbord Collegiate Institute
- Harold M Brathwaite Secondary School
- Harris Institute Of Music
- Harrow District High School
- Hartman's Corners School
- Harwood School
- Hastings & Prince Edward District School Board
- Havergal College
- Hawthorn School For Girls
- Hawthorne Public School
- Haydon Community Hall (former Schoolhouse)
- Hazel Mccallion Senior Public School
- Hearst High School
- Heart Lake Secondary School
- Hellmuth Ladies' College
- Henderson Avenue Public School
- Henry Kelsey Senior Public School
- Henry Munro Middle School
- Henry N R Jackman Faculty Of Law
- Henry Street High School
- Heritage Baptist College And Heritage Theological Seminary
- Heritage Community Christian School (brockville, Ontario)
- Heydon Park Secondary School
- High School Of Commerce
- Highcastle Public School
- Higher Education Quality Council Of Ontario
- Highland Creek Public School
- Highland Secondary School
- Hill Park Secondary School
- Hillcrest High School
- Hillcrest High School
- Hillcrest Public School
- Hillfield Strathallan College
- Hitherfield Preparatory School
- Holland Landing Public School
- Holy Cross Catholic Academy
- Holy Cross Catholic Secondary School
- Holy Cross Catholic Secondary School
- Holy Cross Catholic Secondary School
- Holy Cross Secondary School
- Holy Name Catholic School
- Holy Name Of Mary Catholic Secondary School
- Holy Name Of Mary College School
- Holy Names High School
- Holy Spirit Catholic School
- Holy Trinity Catholic High School
- Holy Trinity Catholic High School (simcoe)
- Holy Trinity Catholic Secondary School
- Holy Trinity Catholic Secondary School
- Holy Trinity Catholic Secondary School
- Holy Trinity High School
- Holy Trinity School (richmond Hill)
- Hopewell Avenue Public School
- Hornepayne High School
- Howard House
- Hudson College
- Humber Polytechnic
- Humberside Collegiate Institute
- Humberstone School No 6
- Humberview Secondary School
- Huntington University
- Huntsville High School
- Huron Heights Secondary School
- Huron Heights Secondary School (kitchener)
- Huron Park Secondary School
- Huron University College
- Huron Superior Catholic District School Board
- I E Weldon Secondary School
- Ilac International College
- Ignace Secondary School
- Immaculata High School
- Imperial College Of Toronto
- Independent Learning Centre
- Ingersoll District Collegiate Institute
- Inglenook Community High School
- Innis College
- Innisdale Secondary School
- Institute For Advanced Judaic Studies
- Institute For Christian Studies
- Institute For Management And Innovation
- Institute Of Communication, Culture, Information And Technology
- Institute Of Criminology And Criminal Justice
- Iona Catholic Secondary School
- Iroquois Falls Secondary School
- Iroquois Ridge High School
- Islamic Institute Of Toronto
- Islamic Society Of North America Elementary School
- Islington Junior Middle School
- Ivey Business School
- J Clarke Richardson Collegiate
- J H Putman Public School
- J S Woodsworth Secondary School
- J E Benson Public School
- Jack Chambers Public School