| Harding | Joan | Cavan | Yes | | | D 4 Omemee HS |
| Hartill | Sandra | Bracebridge | Yes | | | D 18 Gravenhurst HS |
| Hawker | Linda | London | Other | GCO, RBG, Rose judge | | |
| Haworth | Lillie | Grimsby | Other | GCO-design, RBG-hort | | D 9 Grimsby Garden Club |
| Hodgins | Denise | London | Yes | Rose | | D 10 Thorndale HS |
| Honda | Ritsuko | Wilno | Yes | | | |
| Hooper | Carolyn | Barrie | Yes | | | D 16 Barrie HS |
| Howard | Sherry | Whitby | Yes | | | D17 Brooklin Whitby GC |
| Huddle | Diane | Kingston | Yes | | | D 3 Collins Bay HS |
| Hutton | Judy | Stayner | Yes | | | Stayner HS |
| Hynna | Marie | Thunder Bay | Yes | | | D14 Thunder Bay HS |
| Ilnitski | Colette | Sudbury | Yes | | | D13 Sudbury HS |
| Innes | Anne | Embro | Yes | | | D 10 |
| Izsak | Patricia | Thunder Bay | Yes | | | |
| King | Sheila | Manotick | Yes | | | D 2 Manotick HS |
| Koch | Carole | Gloucester | Yes | | | D 2 Nepean HS |
| Lang | Kathleen | Jasper | Yes | GCO-design, RBG-hort | - All Districts
- D01
- D02
- D03
- D04
- D05
- D06
- D07
- D08
- D09
- D10
- D11
- D12
- D13
- D14
- D15
- D16
- D17
- D18
- D19
| D 2 |
| Larson | Marj | Oxdrift | Yes | | | |
| Lebeau | Heather | Carleton Place | Yes | GCO-design | | |
| Lindsay | Kathryn | Renfrew | Yes | GCO-design | - D01
- D02
- D03
- D04
- D07
- D08
- D16
- D17
- D19
| |
| Lovering | Dale | Orillia | Yes | RGB-Hort and Canadian Rose Society | | |
| Lukace | Felicity | Lindsay | Yes | | | |
| Luski | Lorraine | North York | Yes | | | D 5 North York Garden Club |
| Lynch | Michelle | Oro Medonte | Yes | GCO-design, Rose, RGB-Hort | | |
| Lynott | Linda | Richmond Hill | Yes | GCO-design, ADS Dahlia Judge | | |
