The IV Constitutional Government was the fourth Constitutional Government under the Constitution of East Timor. Formed on 8 August 2007, it was led by the country's fifth Prime Minister, Xanana Gusmão, and was replaced by the V Constitutional Government on 8 August 2012.

The V Constitutional Government was the fifth Constitutional Government under the Constitution of East Timor. Formed on 8 August 2012, it was led by the country's fifth Prime Minister, Xanana Gusmão, and was replaced by the VI Constitutional Government on 16 February 2015.