List of doping cases in sport (N)

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

Name	Country	Event	Banned substance(s)	Reference(s)
Caba Nadj	Serbia	Weightlifting	Methandienone	[1]
Ammar Naji	Yemen	Weightlifting	Metandienone, Stanozolol, Hydroxystanozolol	[1]
Kazuhiro Nakamura	Japan	Mixed martial arts	Cannabis	[2]
Bayarmaa Namkhaidorj	Mongolia	Weightlifting	Methylhexaneamine	[1]
Sireli Naqelevuki	Fiji	Rugby union	Cannabis	[3]
Dion Nash	New Zealand	Cricket	Cannabis	[4]
Ramin Nasri	Iran	Swimming	Betamethasone	[5]
Samir Nasri	France	Football (soccer)	Excessive intravenous therapy	[6]
Paweł Nastula	Poland	Mixed martial arts	Nandrolone	[7]
Andris Naudužs	Latvia	Cycling	Anabolic steroid	[8] (in Latvian)
Rostyslav Naumchyk	Ukraine	Water polo	Cannabis	[9]
Ryan Napoleon	Australia	Swimming	Formoterol	[10]
Peter Nemeth	Hungary	Weightlifting	Metandienone	[1]
Pavel Nesterenko	Russia	Powerlifting		[11]
Marek Nesvacil	Czech Republic	Volleyball	Cannabinoids	[12]
Moisés Dueñas Nevado	Spain	Cycling	Erythropoietin (EPO)	[13]
Hernâni Neves	Portugal	Football (soccer)	Cocaine	[14]
Vania Neves	Portugal	Swimming	Prednisone	[15]
Ryan Newport	United States	Tennis		[16]
Shaun Newton	England	Football (soccer)	Cocaine	[17]
Terry Newton	United Kingdom	Rugby	HGH	[18]
Lars Brian Nielsen	Denmark	Cycling	Caffeine	[19]
Mark Nielsen	New Zealand	Tennis	Finasteride	[20]
Ivan Nieto Agundiz	Mexico	Weightlifting	Nandrolone	[1]
Josefi Nikola	Czech Republic	Weightlifting		[1]
Pornilai Nilpetch	Thailand	Weightlifting	Methandienone	[1]
Patrik Nilson	Sweden	Ice hockey	Nandrolon	[21]
Ulf Nilsson	Sweden	Ice hockey	Ephedrine	[22]
Ning Zetao	China	Swimming	Clenbuterol	[23]
J. Nithiyanandan	India	Swimming	Stanozolol	[23]
Carola Nitschke	East Germany	Swimming	Anabolic steroids (self-admitted)	[24]
Otis Nixon	United States	Baseball	Cocaine	[25][26]
Sangov Nizom	Tajikistan	Weightlifting	Methylhexaneamine	[1]
Joakim Noah	France	Basketball	LGD-4033	[27]
Alexandre Nogueira	Brazil	Mixed martial arts	Boldenone	[28]
Abdul Noori	Afghanistan	Weightlifting	T/E 14,6, Clostebol, Methylhexamine	[1]
Jordan Norberto	Dominican Republic	Baseball	Performance-enhancing drugs	[29]
Franny Norton	England	Horse racing	Metabolite of cocaine	[30]
Anosheravan Nourian	Iran	Boxing	Ephedrine	[31][failed verification]
Karel Nováček	Czech Republic	Tennis	Cocaine	[32]
Jan Novak	Czech Republic	Water polo	Cannabis	[23]
Nikita Novikov	Russia	Cycling	Selective Androgen Receptor Modulators	[33]
Joseph N'Sima	France	Basketball	Ephedrine	[34]
Kanayut Nuchcharpenpol	Thailand	Weightlifting	Methandienone	[1]
Abraham Núñez	Dominican Republic	Baseball	Performance-enhancing substance	[35][36]
Daniel Núñez	Cuba	Weightlifting	Anabolic steroids	[37]
Vanessa Nunez	Venezuela	Weightlifting	Metandienone	[1]
Jon Nunnally	United States	Baseball	Furosemide	[38][39]
Taylan Nurcan	Turkey	Weightlifting	Methandienone	[1]
Nzubechi Grace Nwokocha	Nigeria	Track and Field	Ostarine and Ligandrol	[40]
Ebba Nyberg	Sweden	Swimming	1,4,6-trien-3, 17dion	[9]
Johan Nystrom	Finland	Weightlifting	Metandienone	[1]