Aivars Lembergs (born 26 September 1953) is a Latvian politician, oligarch, and convicted money launderer who was the mayor of Ventspils from 1988 to 2021, a mandate from which he has been suspended since 2008.

[7][8][9][10][11] On 22 February 2021, Lembergs was sentenced to 5-year imprisonment for massive graft, money laundering and abuse of office, along with a 20,000 EUR fine, and confiscation of property[12] worth tens of millions of euros.

The conditions of the deal involve a ban on serving as mayor of Ventspils in the future and attempts on appealing his original sentence.

[15] Despite the conviction and a split among the alliance, the Union of Greens and Farmers once again nominated him as their prime minister candidate in July 2022 before the 2022 parliamentary election (albeit without him running on the ballot).

[18] On 23 March 2020, Ventspils City Council deputy Ģirts Valdis Kristovskis has turned to the State Police with a request to start a criminal process against Lembergs for his defamatory claims voiced against minority deputy and state official Kristovskis.