A List of Famous Hispanic Scholars, with photos! These are some of the most well known Mexican Americans in the United States. Currently, over 10% of the population of the United States is Hispanic. Mexican American culture is robust and full of history, with a focus on family. The people on this list vary in importance, from Mexican American heroes to simple sources of pride within America's Mexican community. These lists include as many famous hispanics as possible, that said, finding all of them would be a very difficult task. Mexican immigrants are an important part of the fabric that is the great American melting pot. They include many important, distinguished, and notable people within the USA.