This study examined the nature and consequences of workplace gambling in Canada, as well as risk factors and motivations. This study surveyed 1,742 Canadian adults who were employed full-time, had internet access at work, and engaged in non-lottery gambling at least once a month. Follow-up interviews involved 18 participants who met the DSM-5 criteria for gambling disorder. Among the survey participants, almost half (44%) gambled in the workplace in the last year. Those who gambled in the workplace were more likely to participate in lottery (45%) and in any office pool (56%). About 16% were disciplined for gambling at work, while 13% lost their job at least once. Workplace gambling was linked to younger age, male gender, married/common-law status, working in the gambling industry, and having computer and mobile device access at work. People with higher levels of job satisfaction were less likely to gamble in the workplace. Most participants gambled at work for excitement (52%) or because gambling was a social activity (44%).