To support broader efforts to empower military personnel to improve their health and wellbeing, the Canadian Armed Forces (CAF) have implemented numerous mental wellbeing programs and resources. The aim of the present study was to better understand factors that may drive awareness and use of these programs/resources. Data from the Your Say Survey, which is routinely administered to CAF members to assess their perceptions of policies and programs, were analyzed to identify key predictors of awareness and use of programs and resources promoting positive mental health at the individual, unit leader, and organizational levels. The survey was completed in 2021 by a stratified random sample of 1,743 Regular Force members, which was weighted to be representative of the CAF Regular Force population. Awareness of most programs/resources that were considered was found to be quite high, whereas use was comparatively low. Results of logistic regression analyses revealed that program/resource awareness was generally lower among younger CAF members, those who were single and had no dependent children, and those who indicated their supervisors infrequently demonstrated positive behaviours around mental health. Awareness also varied depending on the organizational command in which CAF members worked. It was found that CAF members were generally more likely to have used the program/resource if they reported poorer self-rated mental health and were older. Similar to program/resource awareness, use varied significantly depending on CAF members’ organizational command. The potential implications of these findings for enhancing awareness of mental wellbeing programs and resources in the CAF, and in occupational settings as a whole, are discussed.