This research analyzed sources of knowledge used by Spanish coaches according to competition level, gender, and professional experience. It provides valuable insight regarding the influence of demographic factors on the knowledge acquisition of coaches in a subgroup of the population (Spanish coaches) for which little is known. Participants were 675 coaches of different team and individual sports. Data were collected through the use of a standardized validated questionnaire. Results indicated that coaches in Spain subscribe to informal knowledge acquisition methods more than formal and non-formal ones. The sources of knowledge most used were an exchange of knowledge with other professionals, observation of other coaches, and previous athletic experience. The sources of knowledge least used were reading books or magazines, and conducting research. Additionally, it was found that coach demographics were associated with differences in the priority given to specific sources of knowledge. Consequently, commonly utilized formal knowledge translation approaches may need to be reconsidered.