Sergio Alberto Estrada Cajigal Ramírez is a Mexican politician, who was Governor of the state of Morelos for the National Action Party from 2000 - 2006, and who served two periods as mayor of Cuernavaca. His grandfather Vicente Estrada Cajigal was the governor of Morelos from 1930-1935. In 2009 he left the NAP and in 2012 he supported the candidate for Governorship of PRI. Since leaving the governorship he has been embroiled in some highly publicized legal and political controversies, but has not been indicted for any wrong-doings.

The governor of Morelos, which was created with the state of Mexico in 1869.