List of doping cases in sport (K)

This is a sub-list from List of doping cases in sport representing a full list of surnames starting with K.

Name	Country	Event	Banned substance(s)	Reference(s)
Alina Kabaeva	Russia	Rhythmic gymnastics	Furosemide	[citation needed]
Alimuddin Kakar	Pakistan	Weightlifting		[1]
Georgios Kalogeropoulos	Greece	Swimming	Cannabis	[2]
Mohamed Kallon	Sierra Leone	Football (soccer)	Nandrolone	[3]
Kaspars Kambala	Latvia	Basketball	Cocaine metabolite	[4]
Ruslan Kapaev	Kyrgyzstan	Weightlifting		[5]
Tovmasjan Karen	Netherlands	Weightlifting	Metandienone	[5]
Rogerio Karfunkelstein	Brazil	Swimming	Stanozolol	[6]
Faisal Karim	Pakistan	Boxing	Cannabis	[7]
Nauman Karim	Pakistan	Boxing		[8]
Mario Kasun	Croatia	Basketball	Cathine	[9][10]
Kevin Kasuza	Zimbabwe	Cricket	Recreational drugs	[11]
Sesil Karatantcheva	Bulgaria	Tennis	Nandrolone	[12]
Svend Karlsen	Norway	Strongmen		[13]
Mohd Karmand	Afghanistan	Weightlifting	Methandienone	[5]
Samko Karol	Slovakia	Weightlifting	Drostanolone	[5]
Fetie Kasaj	Albania	Weightlifting		[14] (in Norwegian)
Vasiliki Kasapi	Greece	Weightlifting	Methyltrienolone, Buprenorphine	[5]
Andrey Kashechkin	Kazakhstan	Cycling	Blood doping	[15]
Asmaa Kataria	Egypt	Swimming	Ephedrine	[6]
Mohamed Katir	Spain	Athletics	3 whereabouts failures in a 12-month period and tampering with an anti-doping investigation	[16][17][18]
Gursharanpreet Kaur	India	Wrestling	Methylhexaneamine	[19]
Valeriya Kaverina	Russia	Weightlifting	Metandienone	[5]
Devi Kavita	India	Weightlifting	Metandienone	[5]
Valery Kaykov	Russia	Cycling	GW501516	[20]
Kboi	Vietnam	Weightlifting	Testosterone, Epitestosterone	[5]
Zoltan Kecskes	Hungary	Weightlifting		[21]
Lachlan Keeffe	Australia	Australian rules football	Clenbuterol	[22]
Ronwin Kelly	South Africa	Rugby union (former bodybuilder)	Nandrolone	[23]
Robert Kendrick	United States	Tennis	Methylhexaneamine	[24]
Daniel Kenedy	Portugal	Football (soccer)	Furosemide	[25]
Martin Kennedy	Australia	Rugby League	SARMS, growth hormone, chorionic gonadotrophin, insulin	[26]
Paddy Kenny	Ireland	Football (soccer)	ephedrine	[27]
David Kerkhoffs	Belgium	Swimming	Cannabinoids	[28]
Jason Kerr	Canada	Bobsleigh	Boldenone, nandrolone, testosterone, trenbolone	[29]
Paul-Alain Kersale	France	Swimming	Cannabinoids	[28]
Matthias Kessler	Germany	Cycling	Testosterone	[30]
El Maoui Khalil	Tunisia	Weightlifting	Methylhexaneamine	[5]
Naglaa Hamed Khallaf	Egypt	Weightlifting	Stanozolol	[5]
Vitaliy Khan	Kazakhstan	Swimming	Cannabis	[31]
Masuam Khatri	India	Wrestling	Methylhexaneamine	[19]
Praeonapa Khenjantuek	Thailand	Weightlifting	Metandienone	[5]
Nan Aye Khine	Myanmar	Weightlifting	Steroids	[32][33]
Natalia Khlestkina	Romania	Weightlifting	Metenolone	[5]
Bahodur Kholov	Tajikistan	Weightlifting	Nandrolone	[5]
Yaroslav Khoma	Ukraine	Football (soccer)		[34]
Albina Khomich	Russia	Weightlifting	Anabolic steroids	[35]
Yekaterina Khoroshikh	Russia	Hammer throwing
Natalya Khudyakova	Ukraine	Swimming	Stanozolol	[28]
Oksana Khvostenko	Ukraine	Biathlon		[36]
Zbyszko Kienast	United Kingdom	Weightlifting	Testosterone	[37]
Rotson Kilambe	Zambia	Football (soccer)	Cannabis	[38]
Kazbek Kilou	Belarus	Wrestling	Metenolone	[39]
Igor Kim	Kazakhstan	Weightlifting	Furosemide, T/E 21.4	[5]
Kim Jong Su	North Korea	Shooting	Propanolol	[40][41]
Hyang Kim	North Korea	Weightlifting	Methyltestosterone, Methandriol	[5]
Vivian Kingma	Netherlands	Cricket	Benzoylecgonine	[42]
Matt Kinney	United States	Baseball	Amphetamines	[43]
Gerard Kinsella	England	Football (soccer)	Nandrolone	[44]
Gergana Kirilova	Bulgaria	Weightlifting	Steroids	[45]
Harri Kirvesniemi	Finland	Cross-country skiing	HES	[citation needed]
Karolin Kittel	Germany	Swimming	Refusal to submit to doping test	[46]
Steffen Kjærgaard	Norway	Cycling		[47]
Boonnatee Klakasikit	Thailand	Weightlifting	Methandienone	[5]
Sarah Klein	Australia	Athletics	Failure to provide testing sample	[48]
Rory Kleinveldt	South Africa	Cricket	Marijuana	[49]
Ivan Klim	Belarus	Weightlifting	Stanozolol	[5]
Vitali Klitschko	Ukraine	Boxing	Anabolic steroids (self-admitted)	[50]
Kasem Knakri	Syria	Weightlifting		[5]
Tonya Knight	United States	Bodybuilding	Using a stand-in when chosen for a random drug test	[51]
Bernhard Kohl	Austria	Cycling	CERA	[52]
Francis Kombe	Zambia	Football (soccer)	Cannabis	[53]
Anton Komlev	Russia	Swimming		[54]
Izabela Kondraszuk	Poland	Gymnastics	Dimethylpentylamine	[55]
Yoann Kongolo	Switzerland	Kickboxing	Methandrostenolone and stanozolol	[56]
Steven Koops	Australia	Australian rules football	Pethidine	[57]
Mouhanad Korabi	Syria	Weightlifting	Stanozolol, Metenolone, Methyltestosterone	[5]
Olha Korbka	Ukraine	Weightlifting	Methandienone	[5]
Petr Korda	Czech Republic	Tennis	Nandrolone	[58]
Juha Korhonen	Finland	Swimming	Cannabis	[59]
Albert Korir	Kenya	Athletics	CERA	[60]
Andrey Korneyev	Russia	Swimming	Bromantan	[61]
Chris Korol	Canada	Bobsleigh		[62]
Ekaterina Koroleva	Russia	Cycling		[54]
Anzhelika Kotyuga	Belarus	Speed skating	Anabolic steroids	[63][64]
Eleni Kourtelidou	Greece	Weightlifting	Methyltrienolone, Buprenorphine	[5]
Nikos Kourtidis	Greece	Weightlifting		[65]
Zoltán Kovács	Hungary	Weightlifting	Refusal to provide test	[66]
Justyna Kowalczyk	Poland	Cross-country skiing	Dexamethason	[67]
Kateryna Kozlova	Ukraine	Tennis	1,3-Dimethylbutylamine	[68]
Nina Kraft	Germany	Triathlon	Erythropoietin (EPO)	[69]
Natascha Kraus	Germany	Swimming	Reproterol	[70]
Daniel Kreutzer	Germany	Ice hockey	Missed test	[71]
Tobias Kreuzmann	Germany	Swimming	Finasteride	[31]
Lennie Kristensen	Denmark	Cycling		[72]
Ante Krizan	Croatia	Swimming	Methylhexaneamine	[46]
Lubos Krizko	Slovakia	Swimming	Tamoxifen	[46]
Karen Kronemeyer	Netherlands	Squash	Benzylpiperazine	[73]
Stein Olav Krosby	Norway	Speed skating, long track	Testosterone	[74]
Roman Kryklia	Ukraine	Kickboxing	Meldonium, clenbuterol	[75]
Andrey Krylov	Russia	Gymnastics	THC	[55]
Herkie Kruger	South Africa	Rugby union	Nandrolone	[76]
Vasyl Kruk	Ukraine	Weightlifting	Stanozolol, testosterone	[77]
Ondrej Kruzel	Slovakia	Weightlifting	Drostanolone	[5]
Virpi Kuitunen	Finland	Cross-Country skiing		[78]
Galina Kulakova	Russia	Cross-Country skiing	Ephedrine	[79]
Pavel Kulizhnikov	Russia	Speed skating	Methylhexanamine, Meldonium	[80][81]
Sumit Kumar	India	Wrestling	Methylhexanamine	[19]
Saliya Kumara	Sri Lanka	Rugby union	Methylhexanamine	[82][83][84]
Pratima Kumari	India	Weightlifting		[32]
Ouyang Kunpeng	China	Swimming	Clenbuterol	[85]
Dimitar Kutrovsky	Bulgaria	Tennis		[86]
Alexi Kutsenko	Russia	Swimming	Testosterone	[87]
Ruza Kuzieva	Uzbekistan	Powerlifting	Methandienone	[88]
Albert Kuzilov	Georgia	Weightlifting	Metandienone	[5]
Zhassulan Kydyrbayev	Kazakhstan	Weightlifting	Stanozolol	[5]
Artur Kyshenko	Ukraine	Kickboxing		[89]