A People's Deputy of Ukraine is a member of parliament and legislator elected by a popular vote to the Verkhovna Rada. People's Deputies of Ukraine are often referred to simply as the "deputies"; however, regular deputies are members of regional and local councils, while people's deputies are elected to the national parliament, Verkhovna Rada. Prior to 1991, the Verkhovna Rada was named the Supreme Council of People's Deputies of the Ukrainian Soviet Socialist Republic.

The Constitution of Ukraine is the fundamental law of Ukraine. The constitution was adopted and ratified at the 5th session of the Verkhovna Rada, the parliament of Ukraine, on 28 June 1996. The constitution was passed with 315 ayes out of 450 votes possible. All other laws and other normative legal acts of Ukraine must conform to the constitution. The right to amend the constitution through a special legislative procedure is vested exclusively in the parliament. The only body that may interpret the constitution and determine whether legislation conforms to it is the Constitutional Court of Ukraine. Since 1996, the public holiday Constitution Day is celebrated on 28 June.