Gustav Adolf Franz Brand was a German writer, egoist anarchist, and pioneering campaigner for the acceptance of male bisexuality and homosexuality.

Egoist anarchism or anarcho-egoism, often shortened as simply egoism, is a school of anarchist thought that originated in the philosophy of Max Stirner, a 19th-century philosopher whose "name appears with familiar regularity in historically orientated surveys of anarchist thought as one of the earliest and best known exponents of individualist anarchism". Egoist anarchism places the individual at the forefront, crafting ethical standards and actions based on this premise. It advocates personal liberation and rejects subordination, emphasizing the absolute priority of self-interest.