Key informant interviews are a stalwart of qualitative research, particularly policy-focused research. So ubiquitous is this research method that it is sometimes taken for granted that key informants indeed have important knowledge and value. This commentary interrogates the emphasis that is sometimes placed on key informant interviews over other qualitative research methods, asking important questions including: why are these informants “key,” and who says they are “key”? This article uses a feminist lens to analyze key informant interviews, suggesting that the power and privilege surrounding key informants might inadvertently lead to key informant interviews being less participatory and more infused with vested interests than researchers might admit. Within the hierarchy of research methods, key informant interviews may be positioned as producing more valuable knowledge because of the status and expertise of the person being interviewed. Their “expert” status may lead to assumptions that key informants understand and represent their communities. This article draws attention to the gendered consequences of prioritizing the knowledge of key informants, contrasting this with feminist perspectives on knowledge production which value the voices and perspectives of “ordinary” community members. This article also points to the methodological advantages which power-holders benefit from when they participate in key informant interviews compared to focus group discussions or surveys, advocating for greater community voice (especially women’s voice) through in-depth interviews with “ordinary” women and increased critical analysis of the limits of key informant interviews.