“Culture is the collective programming of the mind distinguishing the members of one group or category of people from others” (Hofstede, 2011, p. 3). Hofstede has identified five fundamental dimensions that distinguish cultures: power-distance, long-term orientation, uncertainty avoidance, collectivism, and masculinity. How do these fundamental cultural values affect students’ attitudes toward environmental sustainability? To address this issue, we surveyed 445 students at a university in the Midwestern United States. There were 195 males and 290 females, ranging in age from 18 to 63 (Mean = 32.36). Sixty-one percent were Caucasian, 11.4% were Hispanic, 14.6% were Black, and the remainder were from a variety of ethnic groups. A standardized test of Hofstede’s dimensions (Yoo, Danthu, & Lenartowicz, 2011) was entered in to an electronic survey together with 7 questions concerning attitudes toward environmental sustainability. These and the sex of participant were entered into a multiple regression analysis with the sum of the pro-environmental attitude questions as the dependent variable. Forward selection revealed that long-term orientation was the strongest predictor, R = .358, F(1, 443) = 64.949, p < .001. Masculinity entered next, and negatively, R = .384, F(1, 442) = 10.188, p < .002. Collectivism entered next, R = .408, F(1, 441) = 9.846, p < .002. The last predictor to enter significantly was uncertainty avoidance, R = .424, F(1, 440) = 7.550, p < .006. Gender of participant and power-distance did not enter significantly. While it is not too surprising that people who value long-term planning are also concerned about environmental sustainability, it was surprising to see that less masculine students were more concerned with the environment than the more masculine ones, especially since sex of participant did not enter the equation. While we had originally hypothesized that collectivism would be the strongest predictor of pro-environmental attitudes, it was actually only the third-best predictor. In retrospect, the relation of uncertainty avoidance to environmental sustainability makes sense, but was not hypothesized in advance. It was the weakest of all the significant predictors. Future research should examine relations between cultural values, environmental attitudes, and pro-environmental behaviors across varying cultures.