性伦理（英语：Sexual ethics，或译作性道德）是关于研究何种性行为是符合伦理学论题之一，主要规范包括：

Sexual ethics or sex ethics (also called sexual morality) are ethics that concern issues from all aspects of human sexuality, including human sexual behavior. Broadly speaking, sexual ethics relate to community and personal standards regarding the conduct of interpersonal relationships. This includes issues of consent, sexual relations before marriage or while married (such as marital fidelity, premarital sex and non-marital sex), questions about how gender and power are expressed through sexual behavior, how individuals relate to society, and how individual behavior impacts public health concerns.