| Our Place Community of Hope Centre (metropolitan Toronto) | Corunna | — |
| Our Place Family Resource and Early Years Centre | Kitchener | — |
| Our Place Foundation | Victoria | $1.2M |
| Our Place Peel | Mississauga | $7.8M |
| Our Place Society | Victoria | $21.9M |
| Our Redeemer Lutheran Church | Gatineau | $14K |
| Our Redeemer Lutheran Church of Penticton B.C. | Penticton | $103K |
| Our Redeemer's Lutheran Church | Watrous | $43K |
| OUR Rescue Canada | Toronto | — |
| Our Savior Lutheran Church | Hay Lakes | $55K |
| Our Savior Lutheran Church of Edmonton | Edmonton | $178K |
| Our Savior Lutheran Church of Richmond B.C. | Richmond | $303K |
| Our Savior Lutheran Church | Outlook | $23K |
| Our Savior's Community Lutheran Church | Hussar | $84K |
| Our Savior's Lutheran Church of Regina | Regina | $332K |
| Our Savior's Lutheran Church | Prince George | $88K |
| Our Savior's Lutheran Church | Provost | — |
| Our Saviour Anglican Church Calgary | Calgary | $185K |
| Our Saviour Charismatic Fellowship | North York | $60K |
| Our Saviour Lutheran Church | Chatham | $123K |
| Our Saviour Lutheran Church | Dryden | $183K |
| Our Saviour Lutheran Church | Etobicoke | $125K |
| Our Saviour Lutheran Church | Fort Qu'Appelle | $101K |
| Our Saviour Lutheran Church Kingston Ontario | Kingston | $25K |
| Our Saviour Lutheran Church | London | $62K |
| Our Saviour Lutheran Church | Niagara Falls | $57K |
| Our Saviour Lutheran Church | Ottawa | $90K |
| Our Saviour Lutheran Church Parksville | Parksville | $239K |
| Our Saviour's Lutheran Church of Thunder Bay | Thunder Bay | $164K |
| Our Shepherd Lutheran Church/eglise Luthereienne du Bon Pasteur | Val-Des-Monts | $8,480 |
| Our Town Food Bank | Tottenham | $307K |
| Our World Festival of Music Inc. | Kitchener | $16K |
| Our Youth at Work Association | Paris | $214K |
| Ourhouse Society | Brooklyn Corner | — |
| Ouroboros Salvage Corporation | Toronto | $0 |
| OurSquamish Placemaking Society | Squamish | $52K |
| Out in Harmony Choir Society | Vancouver | $60K |
| Out Innerspace Dance Theatre and Film Society | Vancouver | $1.1M |
| Out of Africa Animal Sanctuary Ltd. | Sturgeon County | — |
| Out of Bounds: Grief Support | Downsview | $87K |
| Out of the Ashes Large Animal Rescue (OALAR) | Sebringville | $75K |
| Out of the Cold Foundation | Toronto | $108K |
| Out on the Shelf Inc. | Guelph | $115K |
| Outdoor Council of Canada Foundation | Calgary | $3,789 |
| Outdoor Recreation Council of British Columbia | Revelstoke | $10.6M |
| Outdoor Recreation Foundation of British Columbia | Coldstream | — |
| Outflow Ministry Inc. | Saint John | $3.2M |
| Outlines for Life Society | Dawson Creek | $1.1M |
| Outlook Alliance Church | Outlook | $308K |
| Outlook and District Arts Council Inc. | Outlook | $18K |
| Outlook and District Food Bank Inc. | Outlook | $40K |
| Outlook and District Heritage Centre Inc. | Outlook | $30K |
| Outlook and District Heritage Museum and Gallery Inc. | Outlook | $193K |
| Outlook Camping Inc. | Kingston | $63K |
| Outlook Christian Fellowship | Outlook | $56K |
| Outlook Congregation of Jehovah's Witnesses Outlook Saskatchewan | Macrorie | — |
| Outlook & District Health Foundation Inc | Outlook | $42K |
| Outlook Donors Choice | Outlook | $33K |
| Outlook Laestadian Lutheran Church | Outlook | $372K |
| Outlook Pastoral Charge ST. Andrew's United Church | Outlook | $126K |
| Outlook Roman Catholic Church | Outlook | $62K |
| Outloud Foundation for LGBTQ community supports and services | ST. Albert | — |
| Outreach Canada Ministries Inc. | Delta | $2.5M |
| Outreach for Life Association of Edmonton | Edmonton | $832K |
| Outreach International (canada) | Surrey | $15K |
| Outreach Pentecostal Church Inc. | Hatfield Point | $357K |
| OUTreach Southern Alberta Society | Lethbridge | $9,818 |
| Outreach ST George's Kingston | Kingston | $225K |
| Outreach to Africa | Surrey | $812 |
| Outreach Zanzibar Foundation | Mississauga | $58 |
| OUTSaskatoon Inc. | Saskatoon | $1.3M |
| Outside Looking In | Ohsweken | $2.6M |
| Outside the March Theatre Company Inc. | Toronto | $1M |
| Outward Bound Canada | Toronto | $5.6M |
| Outward Bound Canada Foundation | Toronto | — |
| Ouvre Ton Coeur a l'Espoir | ST-Georges | $197K |
| Ouvroir Missionnaire Ste-Marie Inc. | Ville de Sainte-Marie | $270K |
| Ouvroir Notre-Dame des Apotres | Saint-Laurent | $10K |
| Ouvry Cemetery | Chatham | $6,856 |
| Ovarian Cancer Canada/Cancer de l'Ovaire Canada | North York | $6.4M |
| Ovarian Cancer Relief Foundation | Lanark | $49K |
| Over 55 (london) Inc. | London | $269K |
| Over to the Youth | Laval | $20K |
| Overcôme Syngap1 Cômbattre Syngap1 | Montreal | $29K |
| Overcomers Assembly Inc. | Montreal-Ouest | $176K |
| Overcomers Christian Center (the Overcomers Place) | Brampton | $431K |
| Overcomers Christian Fellowship (toronto) | Scarborough | $60K |
| Overcomers Community Church of Calgary | Calgary | $9,777 |
| Overcomers Family pavilion | Calgary | $10K |
| Overcomers Gospel Church International | Brampton | $87K |
| Overcomers Outreach Canada Inc | Beausejour | $40K |
| Overcomers Pentecostal Church | Edmonton | $57K |
| Overcoming Faith Centre Inc. | Prince George | $399K |
| Overflowing Rivers Ministries Of Northwest Edmonton | Edmonton | $99K |
| Overlea/marc Garneau Alumni Association | Ajax | $163K |
| Overseas Chinese Bible Fellowship Association | Burnaby | — |
| Overseas Evangelical Mission | Richmond | $5,835 |
| Overseas Missionary Fellowship | Scarborough | $6.5M |
| Overseas Old Margaretian Association | Duncan | — |
| Overseas Radio & Television (canada) Society | Vancouver | $300 |
| Overwatch Recovery | Drumheller | $3,820 |
| Owaissi Anglican Camp Association Diocese of Kootenay | Kelowna | $27K |
| Owen Community Learning Centre | North York | $1.5M |
| Owen E. Moore Ministries | Langley | $230 |
| Owen Sound Alliance Church | Owen Sound | $976K |
| Owen Sound Canadian Reformed Church | Owen Sound | $495K |
| Owen Sound Church of Christ | Owen Sound | $101K |
| Owen Sound Church of the Nazarene | Owen Sound | $69K |
| Owen Sound Field Naturalists | Owen Sound | $51K |
| Owen Sound Gospel Hall | Owen Sound | $50K |
| Owen Sound Hunger Relief Effort | Owen Sound | $947K |
| Owen Sound Knights of Columbus Council No 2092 Charitable Trust | Owen Sound | $30K |
| Owen Sound Korean Presbyterian Church | Owen Sound | $32K |
| Owen Sound Little Theatre | Owen Sound | $1.1M |
| Owen Sound Museums | Owen Sound | $135K |
| Owen Sound Muslim Association | Owen Sound | $158K |
| Owen Sound North Grey Union Public Library | Owen Sound | $3M |
| Owerri Zone Community in Tornto Orphanage | Toronto | $760 |
| OWL-Once Was Lost Ltd. | Fort McMurray | — |
| Owl (orphaned Wildlife) Rehabilitation Society | Delta | $976K |
| Oxbow and District Recreation Board Inc. | Oxbow | $1.1M |
| Oxbow Cemetery Maintenance Society Inc. | Oxbow | $2,307 |
| Oxbow Community Foundation Inc. | Oxbow | $3,146 |
| Oxbow-Glen Ewen Pastoral Charge | Oxbow | $131K |
| Oxbow Gospel Trust | Oxbow | $282K |
| Oxbow Health CARE Auxiliary | Oxbow | $23K |
| Oxbow Lighthouse Foursquare Gospel Church | Oxbow | — |
| Oxbow Public Library Branch | Oxbow | $3,199 |
| Oxdrift Volunteer Fire Team | Dryden | — |
| Oxfam Canada | Ottawa | $42.6M |
| Oxfam-Quebec | Montreal | $44.9M |
| Oxford and Area Food Bank Association | Oxford | $25K |
| Oxford Assembly | Virden | $260K |
| Oxford Baptist Church | Woodstock | $1.4M |
| Oxford-Brant Association of Baptist Churches | Tillsonburg | $0 |
| Oxford Centre United Church | Woodstock | — |
| Oxford Community Centre Association | Oxford | $3.9M |
| Oxford Community Child CARE Inc | Woodstock | $6.2M |
| Oxford Community Foundation | Woodstock | $1.6M |
| Oxford Congregation of Jehovah's Witnesses Edmonton Alberta | Edmonton | $35K |
| Oxford County 4-H Association | Tavistock | $39K |
| Oxford County Animal Rescue | Woodstock | $110K |
| Oxford County Community Health Centre | Woodstock | $4.7M |
| Oxford County Feline Wellness & Outreach Programs | Woodstock | $113K |
| Oxford County Library Board | Woodstock | $5.8M |
| Oxford County Right to Life Inc. | Woodstock | $21K |
| Oxford County Trails Council | Beachville | — |
| Oxford Historical Society | Woodstock | $2,318 |
| Oxford House Foundation of Canada | Calgary | $2.1M |
| Oxford House Saskatchewan Incorporated | Saskatoon | $828K |
| Oxford Pine Grove Cemetery Company-Cumberland County | Oxford | $30K |
| Oxford Pioneer Heritage Club | Oxford | $78K |
| Oxford Reformed Christian School Society | Mount Elgin | $3.5M |
| Oxford-Thomson Pastoral Charge | Oxford | — |
| Oxford United Baptist Church | Oxford | $49K |
| Oxford Winds Community Concert Band | Woodstock | $13K |
| Oxford York: Cancer Circle (OYCC) | Pierrefonds | $3,398 |
| Oxy-Jeunes Inc. | Montreal | $366K |
| OYA Black Arts Coalition | Toronto | $2.9M |
| Oyama Community Club | Oyama | $148K |
| Oyate Tipi Cumini Yape Inc. | Winnipeg | $1.4M |
| Oyen and District Health CARE Foundation | Oyen | $122K |
| Oyen & District Food Bank Association | Oyen | $49K |
| Oyen Evangelical Missionary Church Fellowship | Oyen | $131K |
| Oyen United Church | Oyen | $37K |
| Oyster Bay Congregation of Jehovah's Witnesses Campbell River British Columbia | Campbell River | — |
| Oyster River Enhancement Society | Black Creek | $124K |
| Ozer Israel | Montreal | $24K |
| Ozhaawashko-Giizhig Traditional Teaching Lodge | Neebing | $104K |