Gennadiy Leonidovich Trukhanov (Russian: Геннадий Леонидович Труханов; Ukrainian: Генна́дій Леоні́дович Труха́нов, Hennadiy Leonidovych Trukhanov; born 17 January 1965) is the mayor of Odessa. He has been named as part of a Ukrainian crime syndicate who laundered money through London by buying multi-million pound properties in the city. 
Gennadiy Trukhanov was born on 17 January 1965 in Odessa, which was then in the Ukrainian Soviet Socialist Republic, a part of the Soviet Union. In 1986, he graduated from the Frunze Artillery School in Odessa. After graduation, he was given the rank of lieutenant. He was an engineer that specialised in repairing and maintaining artillery. From 1986 until 1992, he served in the North Caucasus Military District. He retired from Armed Forces in 1992, after having attained the rank of captain. In 1993, he worked at a private security firm. In 2000, he worked at Lukoil. He started work at the office of Verkhovna Rada, the parliament of Ukraine, in 2004. He was elected to Odessa city council in 2005, and was re-elected in 2006. He served on various committees in the Odessa city council. He was elected to the Verkhovna Rada as a representative of the Party of Regions in 2012. Amidst rising unrest in Ukraine in the aftermath of the 2014 Ukrainian revolution and the violent 2 May clashes in Odessa, he was elected mayor of the city on 25 May 2014. In the 2015 Mayoral election of Odessa Trukhanov was reelected in the first round of the election with 52.9% of the vote.
The Panama Papers indicate that Trukhanov is a Russian citizen, despite Ukrainian law banning dual citizenship. Trukhanov denied the allegation. The Panama Papers also show that he has "a substantial business empire in Ukraine through companies registered in the British Virgin Islands", with a suburb of Moscow listed as his place of residence. On 9 April, Eduard Gurwits, ex-mayor of Odessa, affirmed that Trukhanov possesses three foreign passports: two Russian and one Greek. Trukhanov in 2017, through a Russian court, annulled his Russian passport.
- "Paradise Papers: Ukraine crime gang hid proceeds in luxury London flats". BBC NEWS. 24 April 2018.
- "Odessa City Mayor". Official Site of Odessa. Odessa City Council. Archived from the original on 14 August 2009. Retrieved 25 July 2014.
- "Election Results 2012 Parliamentary Election". Ukraine. Retrieved 25 July 2014.
- "Incumbent Odesa Mayor Trukhanov declared winner in Sunday mayoral election". Interfax-Ukraine. 28 October 2015. Retrieved 28 January 2019.
- "Hromadske TV: Secret business assets of Odesa mayor Trukhanov". Kyiv Post. 4 April 2016.
- "Truhanov denies knowledge of citizenship". Ukrayinska Pravda (in Ukrainian). 4 April 2016.
- Gnap, Dmytro (27 May 2016). "Odesa mayor hides construction business offshore". OCCRP.
- "Ex-mayor of Odesa says Trukhanov has one Greek, two Russian passports". KyivPost. 9 April 2016.
- "Trukhanov in 2017 annulled his Russian passport through the court". Ukrayinska Pravda (in Ukrainian). 14 February 2019.
- "Odesa Mayor Trukhanov freed against MP Golubov's guarantees". UNIAN. 15 February 2018. Retrieved 28 January 2019.