Currently, throughout the world, there are nearly 40 million children displaced by natural or man-made disasters. The special needs of children in disasters are often unrecognized, yet children comprise half of disaster victims. The purpose of this review is to provide information on (1) demographics related to children and disasters, both domestic and international; (2) risks for children who experience disasters; (3) programs that help children in disasters; and (4) training programs on the special needs of children in disasters. Children who are displaced by disasters are at risk of acute and long-term medical problems. Disaster experiences can also lead to acute and long-term psychological problems. Ultimately, these have worldwide negative implications for human society, including education, health care, security, and economic and political aspects of daily life. There is a compelling need for more services to help the children who have experienced disasters and for education to train more relief workers about the special needs of children in disasters.