It is widely believed that Nigeria consists of a minimum of 250 ethnic groups with Hausa, Yoruba and Igbo as the three dominant ones. Each group has its own language and custom and accepts one or more of the main religions of Christianity, Islam and African traditional religion. This multi-ethnic, multi-cultural, multi-lingual and multi-religious nature of the country makes the pursuit of national unity, unity in diversity, a difficult task. And this is the background for the disruption and violence that have caused much of the displacement and internal migration in the country today. Whenever the parties to a communication act bring with them different experiential backgrounds that reflect a longstanding deposit of group experience, knowledge, and values, cross-cultural or intercultural communication is at play. This paper, therefore, explores the possibility of promoting national cohesion by means of cross-cultural communication in both its symbolic and linguistic forms. Concluding that if professionally applied, cross-cultural communication can enhance national integration, the paper recommends that Nigerians should understand cultural diversity, develop awareness of different cultures, and for this reason, introduce folkloristic (the study of folklore) and cultural history in primary and secondary school curricula.A country need not necessarily be culturally homogenous to be one country. There are at least two other countries of the world with more ethnicities, more cultures, more languages, and more religions than Nigeria and they both will rate higher than Nigeria in any national unity index rating. India, for instance, has over 2000 ethnic groups (US Department of State,2012 & United States Library of Congress). China and India are reminders that being culturally, linguistically and religiously pluralistic is not in any way a life sentence to disunity. There are many benefits to being multicultural and many countries would wish they were as multi-culturally endowed as Nigeria. A multi-ethnic society, for instance, allows people to experience different ways of life, learn other people's languages, their arts, traditions and behavioural patterns. Multicultural education aims to prepare children for living in any multicultural society by making them understand different cultures. In the case of countries that unnaturally swell their populations by drawing cultural groups into their systems from all over the world through the offer of residency lotteries, immigrants are a source of diverse knowledge and experience. They can increase innovation, creativity and prosperity in our cities or countries. New residents also enrich the cultural base of countries by introducing new food, music, traditions, beliefs and interests.The questions to answer then would be: How do multicultural countries deal with anti-multicultural sentiments, and how can Nigeria, multicultural country find its way around the intercultural violence it experiences, in order to achieve national unity? The answers seem to lie in effective cross-...