Geriatric psychiatry became an official psychiatric subspecialty in Canada in 2009. The first board examinations from the Royal College of Physicians and Surgeons of Canada (RCPSC) took place in 2013. Geriatric Psychiatry focuses on the assessment, diagnosis, and treatment of complex mental disorders in late life, a time when the interface between physical and mental health issues often adds a new level of complexity.Little has been written on the history of geriatric psychiatry in Québec and in Canada. A lesser-known aspect is that from the 1970's onwards, the department of psychiatry at the Université de Montréal (UdeM) and its network of teaching hospitals have played a pioneering role in the development of geriatric psychiatry services and training. We seek to recount the history of geriatric psychiatry at UdeM, by tracing the milestones and identifying the main actors responsible for its development, from the inception of the department of psychiatry 50 years ago. This leads us to share reflections on some of the issues geriatric psychiatry is facing in Québec. We interviewed several key actors, past and present, of geriatric psychiatry at UdeM. We read through relevant sources such as articles and monographs on the local history of psychiatric services, information bulletins and annual reports from hospitals and from UdeM, as well as other documentation from personal archives. One of the very first geriatric psychiatry services in Canada was founded in 1978 at the Institut universitaire en santé mentale de Montréal, with a dedicated inpatient unit for new admissions of elderly psychiatric patients. A geriatric psychiatry outpatient clinic was inaugurated the same year at the Pavillon Albert-Prévost. Throughout the years, geriatric psychiatry services were also developed in the remaining hospital sites affiliated with the department of psychiatry at the UdeM (Hôpital Maisonneuve-Rosemont, Centre hospitalier de l'Université de Montréal, Institut universitaire de gériatrie de Montréal), driven by dedicated individuals, in accordance with their respective historical background and mission. Clinical training is provided in each of these sites for medical students, psychiatry residents and more recently, for future geriatric psychiatrists. In 2014, the geriatric psychiatry residency program at UdeM was the first to be accredited in Québec by the RCPSC, as well as the first French language geriatric psychiatry program in North America. Geriatric psychiatry in 2015 is a burgeoning field, in a challenging demographic context. Despite the clinical need, major obstacles remain, particularly in the absence of specific geriatric psychiatry positions. Furthermore, the Québec healthcare system is going through a major restructuration in 2015, adding to the uncertainty. The 50th anniversary of the department of psychiatry at UdeM is an opportunity to underline the contribution of UdeM to the development of geriatric psychiatry in Québec, and to emphasize the specific needs of the elderly in terms of mental health care and geriatric psychiatry services.