The purposes of this study were to construct a Nonverbal Communication Scale for Coaches (NCSC) and to examine relationships among nonverbal communication (NVC), communication ability and coaching evaluation. Study 1 involved construction of the NCSC. Adolescent athletes (n=166) completed a questionnaire that assessed their coach's nonverbal communication (perceived frequency and impression). Exploratory factor analysis yielded eight factors: negative NVC (unfavorable impression formation, negative attitude, unacceptable attitude and exhibition of perplexity) and positive NVC (positive distance, positive gesture, positive touching and positive expression). Study 2 involved testing the reliability and validity of the NCSC, and examining the relationships among NVC, communication ability and coaching evaluation. Adolescent athletes (n=276) estimated their coach's NVC, verbal communication and coaching using the NCSC, Communication Ability Evaluation Scale (Negishi and Kikkawa, 2006) and Coaching Evaluation Scale (Tanaka et al., 1996). Structural equation modeling demonstrated: 1) the reliability and validity of the NCSC for measuring the coach's NVC, 2) relationships among NVC, communication ability and coaching evaluation, and 3) mediation of coaching ability in the relationships. These findings provide a model of relationships among NVC, communication ability and coaching evaluation.