The underrepresentation of women in sport coaching continues to be recognised by researchers and some international organisations. Golf too suffers from a dramatic underrepresentation of women coaches. The purpose of this study was to explore the experiences of women golf coaches and how they navigate this male-dominated coaching domain with a particular focus on experiences of advocacy. The research was designed to qualitatively capture women PGA Professionals’ lived experiences. Women PGA Professionals (N = 11) with 10–34 years of experience (M = 19.8) participated in semi-structured interviews that were structured on the four Ecological Systems Theory (EST) layers. Data were thematically analysed using the EST layers for initial categorization. From this, four themes were developed: recruitment and opportunity; on the course and in the pro shop; perceptions of women PGA Professionals; and advocacy and allies. The themes were part of two related processes: legitimisation and delegitimisation. These dual processes work to either validate women coaches—both as individuals and as a collective—or to undermine them within the profession, respectively, and operate over the four EST layers. Further, these processes are not always discreet and the two may overlap in unanticipated ways.