Since the founding of the Mexican republic, women have been politically engaged in their respective communities. The creation of a modern nation-state during the last decades of the 19th century and first half of the 20th century marked an increase in women’s formal and informal political participation in the country. During the Mexican Revolution of 1910 and particularly in the post-revolutionary period, Mexican women took a much more active role in engaging the state, formed political alliances and organizations, pressed for labor and political rights, and worked collectively and individually to secure suffrage. Women have been part of an array of political parties and have played a key role in the slow and uneven process of democratization in Mexico. In and outside the bounds of formal political parties, and in the greater sphere of electoral politics, women participated in multiple ways in the post-1953 period. Even during the years when women lacked the right to vote, they were engaged politically in the local, regional, national, and international spheres. They did so by participating in all political parties, and participated in voting drives, actively promoted issues that concerned them, and pushed for gender equity in the greater electoral process. Despite lacking suffrage, women in Mexico were engaged citizens in the broadest sense of the word. By the eve of the 21st century, women had served in almost all municipal, state, and government positions and had also competed for the highest office in the land. Yet the limits in electoral reform legislation, unequal and uneven economic development, gender and sexual violence, and continued distrust of the nation’s political system, as well as widespread insecurity caused by a violent drug war that was being strengthened by the influx of US weapons, remained major challenges to women’s continued participation on the country’s long road to democratization.