Óðinn Björn Þorsteinsson (born 3 December 1981 in Reykjavík^[1]) is an Icelandic athlete competing in the shot put and discus throw.^[2] He represented his country at the 2012 Summer Olympics without qualifying for the final.

Year	Competition	Venue	Position	Event	Notes
Representing  Iceland
1999	European Junior Championships	Riga, Latvia	17th (q)	Discus throw	43.12 m
2001	European U23 Championships	Amsterdam, Netherlands	19th (q)	Discus throw	46.40 m
2003	European U23 Championships	Bydgoszcz, Poland	25th (q)	Discus throw	49.20 m
2005	Games of the Small States of Europe	Andorra la Vella, Andorra	1st	Shot put	17.15 m
			2nd	Discus throw	51.23 m
2010	European Championships	Barcelona, Spain	–	Shot put	NM
2011	European Indoor Championships	Paris, France	20th (q)	Shot put	17.31 m
	Games of the Small States of Europe	Schaan, Liechtenstein	1st	Shot put	19.73 m
2012	European Championships	Helsinki, Finland	22nd (q)	Shot put	18.19 m
	Olympic Games	London, United Kingdom	35th (q)	Shot put	17.62 m
2013	Games of the Small States of Europe	Luxembourg, Luxembourg	2nd	Shot put	18.22 m
			4th	Discus throw	50.14 m
2015	Games of the Small States of Europe	Reykjavík, Iceland	2nd	Shot put	18.10 m
2016	Championships of the Small States of Europe	Marsa, Malta	3rd	Shot put	18.38 m
2017	Games of the Small States of Europe	Serravalle, San Marino	3rd	Shot put	17.59 m

Outdoor

• Shot put – 19.83 (Gothenburg 2011)
• Discus throw – 60.29 (Kópavogur 2008)
• Hammer throw – 48.04 (Hafnarfjördur 2005)

Indoor

• Shot put – 20.22 (Hafnarfjördur 2012)