The external focus and internal focus effects on motor performance and skill acquisition have been extensively examined and reviewed in laboratory research. However, the use of attentional focus in the field has not been summarized. Therefore, the present study conducted a systematic review of literature regarding the use of external/internal focus by practitioners (therapists and coaches) and recipients (patients and athletes). From 1999 to 2020, twelve studies examined how external/internal focus were used in the field. Results showed both therapists and coaches predominantly used internal focus; athletes tended to use more internal focus but varied by sports; and attentional focus varied between practice and competition. Additionally, the present review also consistently found that external/internal focus accounted for a small proportion relative to other foci outside the external/internal focus paradigm. Importantly, the differences in results were largely dependent upon the type of assessment ( e.g. closed-ended and open-ended questionnaires). Future research needs to investigate the relative importance of external/internal focus as opposed to other foci, as well as that affect a shift of attentional focus from one type to another.