Gratitude is a key construct in positive psychology. Previous studies seldom examined the salient contextual correlates of gratitude in early adolescence in non-Western society. This study examined the relations among family functioning, class environment, and gratitude in a sample of 202 Chinese elementary school students. The results showed that family cohesion was positively correlated with gratitude toward parents, helpers, and adversity. Family adaptability had a positive correlation with gratitude toward life and a sense of abundance in life. Meanwhile, relationships with classmates were significantly and positively correlated with gratitude toward helpers, adversity, and life, whereas learning burden was negatively correlated with a sense of abundance in life. The theoretical and practical implications are discussed.