Lalehzar District () is in Bardsir County, Kerman province, Iran. Its capital is the city of Lalehzar.
After the 2006 National Census, Lalehzar was elevated to the status of a city.
At the time of the 2006 census, the district's population was 9,473 in 2,227 households. The following census in 2011 counted 8,762 people in 2,462 households. The 2016 census measured the population of the district as 13,407 inhabitants in 4,272 households.