Based on a study of 1689 high school teachers across 132 high schools in 12 countries, this paper discusses their views on spirituality for high school adolescents. In general, they favoured spirituality for adolescents and its inclusion in the curriculum. Specifically teachers from European countries, US, Canada and Australia attested the relational consciousness aspect of spirituality, which enabled adolescents to form and preserve meaningful social relationships and build their altruistic potential. Log regression analysis showed that spiritual assessment of adolescents was perceived as comprehending their spiritual starting point, specifically by those from European countries, US, Canada and Australia. Further, they perceived spirituality as an integral part of the moral science and value education curriculum, with the main curricular objective as cultivating adolescents' spiritual sensibilities and mindfulness. The study provides the nuances of such as curriculum on spirituality in the high schools in terms of knowledge, skills and attitude components.