Sileks Kratovo 2007–2008, Vardar Skopje 2008–2009, Gjilani 2009–2010 Musa Muhammed – (BIH, CRO) – Željezničar Sarajevo 2016–2017, HNK Gorica 2018–2022, Sarajevo 2022–present Olabiran Muyiwa – (CRO) – HNK Gorica 2021–2022 David Nazim – (SVN) – Ankaran Hrvatini (2017)–2018 Chinwendu Nkama – (SVN) – Ankaran Hrvatini 2017–2018, ND Gorica 2020–2021, Aluminij 2021–2022 Samuel Nnamani – (SRB) – Jagodina 2014–(2015) Solomon Nlemchukwu – (CRO) – Hrvatski Dragovoljac 2013–(2014) Abraham Nwankwo – (SVN) – Domžale 2022–present David Nwolokor – (CRO, BIH, SVN) – Rijeka 2014–(2015), 2017–2018, 2019–2021, 2022–present, Vitez 2016–2017, Aluminij 2021–(2022) Omwuka Michel Nwoso – (KOS) – Trepça '89 2014–2015 Samson Obagbemiro – (MNE) – Iskra Danilovgrad 2015–2016 Erhun Obanor – (CRO) – Rudeš 2018–2019, Istra 1961 (2021)–2022 Samuel Ebuka Obi – (SVN) – ND Gorica 2022–present Godfrey Oboabona – (CRO) – HNK Gorica 2018–2019 Jonathan Endurance Odiri – (SVN) – Drava Ptuj 2006–2008 Obiora Odita – (SRB) – Javor Ivanjica 2003–2005, 2006–2007, 2010–2011, 2011–2012, Partizan Belgrade 2005–2007, Voždovac 2014–2016, Mladost Lučani 2016–2021 Ugochukwu Oduenyi – (SRB) – Javor Ivanjica 2022–present Nathan Oduwa – (SVN) – Olimpija Ljubljana 2016–2018 Kingsley Ogbobe – (CRO) – Inter Zaprešić 2014–2015 Ibezito Ogbonna – (MKD) – Vardar Skopje 2011–2012 Chukwudi Ogbonnaya – (KOS) – Liria Prizren (2009)–2010 John Ogu – (SVN) – Drava Ptuj 2006–2010 Emeka Oguegbu – (SRB) – Javor Ivanjica 2010–2011 Michael Ogungbaro – (SVN) – Bravo 2019–2020 Eugene Obi Ohunta – (SVN) – Drava Ptuj 2006–2008 Ikechukwu Ojukwu – (KOS) – Besiana 2004–2006 Martins Okeke – (KOS) – Flamurtari Prishtina 2003–2004 Obele Okeke Onyebuchi – (SRB) – Javor Ivanjica 2002–2003 Aliyu Okechukwu – (CRO) – Zadar 2014–(2015), RNK Split 2016–2017, Istra 1961 (2017)–2018 Eze Okeuhie – (SRB) – Vojvodina 2017–2019, Čukarički Belgrade 2019–2021 Paschal Okoli – (BIH) – Čelik Zenica 2017–2018 Samuel Okon – (SRB) – Dinamo Vranje 2018–2019 Joseph Okonkwo – (KOS) – Vushtrria 2019–(2020), Trepça '89 2020–2021 Samuel Okwaraji – (Yug/CRO) – Dinamo Zagreb 1985–1986 Solomon Oladele – (SRB) – Jagodina 2008–2009 Peter Taiye Oladotun – (MNE) – Rudar Pljevlja 2007–2008 Daniel Olerum – (SRB) – Sloboda Užice 2012–2013 Emmanuel Oletu – (SRB) – Spartak Subotica 2008–2010 Celestine Olisa – (MNE) – Jedinstvo Bijelo Polje 2004–2006 Suleiman Omo – (MKD) – Pobeda Prilep 2004–2005 Peter Omoduemuke – (SRB) – Obilić Belgrade 2004–2007 Sunny Omoregie – (SVN) – Celje 2014–2016, Maribor 2016–2019 Henry Austine Onoka – (KOS) – Drita Gjilan 2020–2022 Emmanuel Onyebuchi – (MKD) – Shkupi 2018–2019 Henry Onyilo – (SRB)