In an era where organisations are increasingly held accountable for their actions and their impact on society and the environment, ethical standards and effective communication behaviour have emerged as vital components of sustainable organisational development. This study examined the important place that morality and effective communication use occupy within organisations and their long-term sustainability. The paper explores quality character and organisational development; sustainable organisational development; indispensability of quality character in organisational development; effective communication and sustainable organisational development; language use, morality and successful sustainable organisational development; leadership, communication, ethical behaviour and sustainable organisational development; and, power of communication in and organisations in the new age. It was concluded that the key to successful sustainable organisation is the ability of organisations to invest in sound ethical/moral standards and employment of effective communication channels. It was recommended, among others, that management of organisations should make policies that condemn negative character in the work environment and apply sanctions where necessary, and seminars and workshops could be organized regularly for employees in the area of communication and ethical behaviour. Keywords: Ethical standards, Communication, Moral, Language, Organisation, Sustainable Development Journal Reference Format: Fasae, F.B.K. (2023): Ethical Standards and Effective Communication for Fostering Sustainable Organizational Development. Humanities, Management, Arts, Education & the Social Sciences Journal. Vol. 11. No. 4, Pp 75-86. www.isteams.net/humanitiesjournal. dx.doi.org/10.22624/AIMS/HUMANITIES/V11N4P6.