Alana S. Portero (b. 1978) is a prominent Spanish historian, writer, playwright, and trans activist known for her powerful voice on feminism, LGTBQ+ issues, and trans experience, particularly in her acclaimed debut novel La mala costumbre (Bad Habit). A co-founder of the STRIGA theater troupe, she writes for publications like Vogue España and ElDiario.es, blending personal narrative with social commentary on working-class life in Madrid, trans identity, and chosen family, making her a significant figure in contemporary Spanish literature.