| Zinni | Judy | Mississauga | Yes | GCO-design, RBG-hort, Rose, Gesneriad Judge
| | D 15 Credit Valley HS |
| Yeoman | Linda | Ingersoll | Yes | | | D 10 Woodstock HS |
| Yahnke | Camilla | Sudbury | Yes | | | D13 Sudbury HS |
| Wyma | Harry | Ridgetown | Yes | | | D 11 Ridgetown HS |
| Woolnough | Shelby | Capreol | Yes | | | D13 Sudbury HS |
| Wilson | Sandra | London | Other | GCO-design
| | D 10 London HS |
| Wilson | Michelle | Brampton | Yes | | | D 15 Brampton HS |
| Willis | Sandra-Pat | Thamesville | Yes | Lily
| | D 11 Ridgetown HS |
| Wells | Holly | Severn Bridge | Yes | | | D 16 Orillia HS |
| Webster | Beverly | Spring Bay | Yes | | | D13 Campbell HS |
| Waung | Iris | Greely | Other | GCO-design, RBG-hort
| | D 2 Ottawa HS |
| Wallis | Linda | Brighton | Yes | | | D 4 Brighton HS |
| Verlaan | Catherine | Phelpston | Yes | | | D 16 Elmvale DHS |
| Vercammen | Mary Ann | Newmarket | Yes | GCO-design, RBG-hort, Rose, Lily
| - All Districts
- D04
- D05
- D06
- D15
- D16
- D17
| D 5 Newmarket HS |
| Veldman | Wenda | Perth | Yes | | | D 2 Perth & District Horticultural Society |
| VanderHoek | Gail | Ripley | Yes | | | D 8 Ripley HS |
| Tyson | Kathleen | Beachburg | Yes | | | D 2 Beachburg HS |
| Twiner | Barbara | Pickering | Yes | RBG-hort, GCO-design
| | D 17 Pickering HS |
| Tibbles | Nancy | Goulais River | Yes | | | D 13 Sault Ste. Marie HS |
| Thiessen | Heinke | Mississauga | Yes | GCO-design, RBG-hort, Rose
| | D 15 Credit Valley HS |
| Teras | Eveline | Innisfil | Yes | | | D 16 Innisfil Garden Club |
| Takasaki | Myra | Waterloo | Yes | | | Waterloo Gardens D19 |
| Taggart | Lil | Georgetown | Yes | | | D 6 Georgetown HS |
| Symons | Trish | Orangeville | Yes | GCO-design, RBG-hort, Rose
| - All Districts
- D01
- D02
- D03
- D04
- D05
- D06
- D07
- D08
- D09
- D10
- D11
- D12
- D13
- D14
- D15
- D16
- D17
- D18
- D19
| D 7 Orangeville HS |
| Suter | Susan | Ancaster | Yes | GCO-design W.A.F.A.
| | D 6 Haldimand HS |
