Johan Tobias Cronje (born 13 April 1982, in Bloemfontein) is a South African track and field athlete who specializes in the 1500 metres event. With a personal best of 3:31.93 he is the current South African record holder in the 1500 metres.

Year	Competition	Venue	Position	Event	Notes
Representing  South Africa
1999	World Youth Championships	Bydgoszcz, Poland	5th	1500 m	3:46.45
2000	Commonwealth Youth Games	Edinburgh, United Kingdom	1st	800 m	1:51.32
			2nd	1500 m	4:00.32
	World Junior Championships	Santiago, Chile	5th	1500 m	3:42.52
2001	African Junior Championships	Réduit, Mauritius	5th	800 m	1:51.96
			4th	1500 m	3:44.09
			1st	4 × 400 m relay	3:14.14
	Universiade	Beijing, China	6th	1500 m	3:45.32
			2nd (h)	4 × 400 m relay	3:07.26
2004	African Championships	Brazzaville, Republic of the Congo	5th	1500 m	3:41.83
	Olympic Games	Athens, Greece	21st (sf)	1500 m	3:44.41
2005	World Championships	Helsinki, Finland	22nd (sf)	1500 m	3:42.77
	Universiade	Izmir, Turkey	4th	1500 m	3:52.16
2006	African Championships	Bambous, Mauritius	6th	1500 m	3:48.08
2007	All-Africa Games	Algiers, Algeria	14th (h)	1500 m	3:46.67
2009	World Championships	Berlin, Germany	41st (h)	1500 m	3:46.45
2010	African Championships	Nairobi, Kenya	9th	1500 m	3:40.25
2012	African Championships	Porto Novo, Benin	5th	1500 m	3:38.27
2013	World Championships	Moscow, Russia	3rd	1500 m	3:36.83
2014	Commonwealth Games	Glasgow, United Kingdom	4th	1500 m	3:39.65
	African Championships	Marrakech, Morocco	7th	1500 m	3:44.40
2015	World Championships	Beijing, China	8th (sf)	1500 m	3:36.59
2016	African Championships	Durban, South Africa	9th	1500 m	3:45.26

Outdoor

• 800 m – 1:45.64 (Berlin 2013)
• 1000 m – 2:18.56 (Dubnica nad Váhom 2010)
• 1500 m – 3:31.93 (Rieti 2013) NR
• One mile – 3:50.70 (Eugene 2014) NR
• 3000 m – 8:02.14 (Torino 2004)
• 5000 m – 13:59.52 (Germiston 2009)

Indoor

• 1000 m – 2:18.48 (Stockholm 2008)
• 1500 m – 3:37.49 (Karlsruhe 2014)

• Johan Cronje at World Athletics