Constitution and Citizenship Day Act of 2012 - Amends the Elementary and Secondary Education Act of 1965 to direct the Secretary of Education to establish a Constitution Day Grant Program awarding competitive grants to local educational agencies and charter schools to commemorate, and enhance educational programs that teach students about, the U.S. Constitution and their state constitution.
Requires such program to occur annually on Constitution Day, September 17, or the following Monday if that day falls on a weekend, and give students the ability to register to vote.