| D.A.S. Day Care |
| Dalemount Child Care |
| Dandylion Childcare Centre |
| Danforth Child Care Centre |
| Davenport Perth Child Care Centre |
| David Lewis Jr YMCA |
| Davisville Care Programme |
| Davisville Child Care Centre |
| Dawes Road Centre For Early Learning |
| Dearham Wood Daycare |
| Debbie Yeung Child Care Centre (Woodgreen) |
| Deer Park Extended Primary Education Program |
| Denlow Community Child Care Centre |
| Denton Place Centre For Early Learning |
| Dentonia Park Co-op Nursery School |
| Derrydown School Age YMCA |
| Dewson YMCA School Age Program |
| Dian Childcare Centre |
| Discovering Minds Montessori Preschool |
| Discovery Place Child Care Centre |
| Distillery District Early Learning Centre |
| Don Mills Children's Centre |
| Don Valley Christian Child Care |
| Donald C. Macdonald Child Care Centre |
| Dover Gardens Nursery School |
| Downsview Day Care Centre |
| Downtown Kids Academy |
| Downtown Montessori |
| Downtown Montessori At Coatsworth |
| Downtown Montessori At Concord City Place |
| Downtown Montessori At Infinity Place |
| Dublin Heights Community Child Care |
| Dufferin / St. Clair Bears |
| Dunlace Children's Centre |
| Dunloe Children's Centre |