I
- Ian Baillie Primary School
- Ian Bazalgette School
- Ian Forsyth School
- Iberville Colony School
- I E Weldon Secondary School
- I. F. Cox School
- Ignace School
- I.J. Samson Junior High School
- Immaculata High School
- Immaculata Intermediate School
- Immaculata Regional High School
- Immaculate Conception
- Immaculate Conception Catholic Elementary School - Peterborough
- Immaculate Conception Catholic Elementary School - Woodbridge
- Immaculate Conception Catholic School - Port Perry
- Immaculate Conception Catholic School - Val Caron
- Immaculate Conception Catholic School - Windsor
- Immaculate Conception Elementary
- Immaculate Conception School - Delta
- Immaculate Conception School - Vancouver
- Immaculate Conception Separate School - Cornwall
- Immaculate Conception Separate School - Formosa
- Immaculate Conception Separate School - Toronto
- Immaculate Heart of Mary School
- Immaculate Heart of Mary School
- Immaculate Heart of Mary Separate School - Stoney Creek
- Immaculate Heart of Mary Separate School - Toronto
- Immanuel Christian Elementary School
- Immanuel Christian High School
- Immanuel Christian School
- Immanuel Christian School
- Immanuel Christian School
- Immanuel Christian School Society
- Imperial College of Toronto
- Imperial Community School
- Imperial School
- Indian Creek Road Public School
- Indian Head Elementary School
- Indian Head High School
- Indian River Academy
- Indian River High School
- Indian Road Crescent Junior Public School
- Indian Springs School
- Indus Elementary School
- Ingersoll District Collegiate Institute
- Inglenook Community School
- Ingleside School
- Inglewood Heights Junior Public School
- Inglewood School
- Inglewood School
- Inglis Elementary
- Inglis Street School
- Inkster School
- Inman Elementary
- Inner City High School
- Innerkip Central School
- Innisdale Secondary School
- Innisfail Junior Senior High School
- Innisfail Middle School
- Innisfil Central Public School
- Innisfree Delnorte School
- Innisfree School
- Innova Academy
- Inst. Coll. Saint-Pierre
- Institut Collégial Franco-Jeunesse
- Institut d'Enseignement de Sept-Îles
- Institution secondaire Montfort
- Institut Saint-Joseph (Pavillon Saint-Louis)
- Institut Saint-Joseph (Pavillon Saint-Vallier)
- Institut secondaire Keranna
- Integral High School
- Integrity Christian Academy
- Interlake Mennonite Fellowship School
- International School of Excellence
- International Schools for Bright & Gifted Children - Caledon
- International Schools for Bright & Gifted Children - St. Catharines
- Inualthuyak School
- Inuglak School
- Inuksuit School
- Inuksuk High School
- Invermay School
- Inverness Education Centre-Academy
- Inwood School
- Iona Academy
- Iona Secondary School
- Ionview Public School
- Iqra Islamic School
- Iqra School
- Irma School
- Iron Bridge Public School
- Iron Creek Colony School
- Iron Ridge Elementary Campus
- Iron Ridge Junior Campus
- Iron River School
- Iroquois Falls Public School
- Iroquois Falls Secondary School
- Iroquois Junior Public School
- Iroquois Public School
- Iroquois Ridge High School
- Irvine Elementary
- Irvine School
- Irwin Memorial Public School
- Irwin Park Elementary
- Isaac Beaulieu Memorial School
- Isaac Brock School
- Isaac Newton School
- Isaac School
- Isabel Fletcher Public School
- Isabella Dicken Elementary
- Isabelle Sellon School
- Islamic Foundation School
- Islamic School of Cambridge
- Islamic School of Hamilton, The
- Island Christian Academy
- Island Lake Public School
- Island Lakes Community School
- Island Oak High School
- Island Pacific School
- Island Public/Natural Science School
- Islands Consolidated School
- Island View School
- Islington Junior Middle School
- Isna Elementary School
- Isna High School
- Italian School of Calgary
- Ituna School
- Ivan Franko Ukrainian School
- I.V. Macklin Public School
- Ivy Montessori School
