There is a plethora of forms of tourism that strife to be good and/ or right. This invokes ethical concepts. This paper reviews various ethical theories, including relativism, teleology, and deontology. Good is related to the outcomes of an action and thus is closer to teleological ethics. Right requires establishment of principles to ensure justice and thus is deontological. However, what is right and what is good may be dependent on one's culture, and thus relative. The paper then applies these theories to tourism to demonstrate challenges of identifying ethical forms of tourism. The issues of ethics in tourism are discussed at both institutional and individual level.