District of Columbia Student Opportunity Scholarship Act of 2003

District of Columbia Student Opportunity Scholarship Act of 2003 - Authorizes the establishment of the District of Columbia Scholarship Corporation as a private, nonprofit corporation to administer, publicize, and evaluate a District scholarship program and determine elementary and secondary student and school eligibility.

Establishes a District of Columbia Scholarship Fund, to be administered by the Secretary of the Treasury.

Authorizes the Corporation to award tuition scholarships and enhanced achievement scholarships to District resident students preparing to enter kindergarten through grade 12 with family incomes not exceeding 185 percent of the national poverty line. Allows scholarships to be used for tuition, fees, and appropriate transportation to public, private, or independent schools (or beyond-school-hours enhancement programs) in the District and specified neighboring counties and cities in Maryland and Virginia.

Directs the Comptroller General to study and report on the District scholarship program. Provides for expedited judicial review of challenges to such program.