To estimate the prevalence of perceived stress, burnout, depression, anxiety, compassion fatigue, compassion satisfaction, resilience, and suicidal ideation among Canadian veterinarians and compare results with those for other populations. 1,403 veterinarians across Canada. The study represented a cross-sectional online survey. The questionnaire incorporated validated psychometric instruments to measure perceived stress, burnout, depression, anxiety, compassion fatigue, and resilience as well as questions regarding suicidal ideation. Means and relative proportions in categories of severity were compared between genders as well as with normative data for the general population and results for veterinarians in the United Kingdom. Approximately 10% of Canadian veterinarians (n = 1,403) completed the survey. Relative to the general population, survey participants had significantly higher mean scores for subscales of burnout and compassion fatigue, anxiety, and depression and significantly lower mean resilience. Relative to males, females had significantly higher mean scores for perceived stress, emotional exhaustion, burnout, secondary traumatic stress, anxiety, and depression and significantly lower mean resilience. Participants also had higher mean scores for anxiety and depression relative to results for United Kingdom veterinarians. The 12-month prevalence of suicidal ideation for participants was 26.2%, which was substantially higher than the estimated prevalence for the general international population (2.1% to 10.0%). Results suggested that the mental health of Canadian veterinarians was poor, compared with the mental health of the general population. These results should serve as a call to action for tools and educational programs directed at supporting veterinarian mental wellness in Canada, with special attention paid to the disparate needs of the genders.