This entry describes theory, research, and practice focused on intercultural teams. It reviews the historical emergence of that focus, the ways in which “team” and “culture” are defined, and significant differences between cultures that can impact the development and performance of those teams. The emerging view of teams as evolving and changing—rather than static—phenomena is stressed. Work suggests that the optimal approach to that development involves building team microcultures, or third cultures, accommodated to the ecology of each specific team with particular concern for the cultures of the members and the tasks they need to complete. Implications for training and intervention are suggested and the needs for future work in the area are identified.