Nijel Carlos Amilfitano Amos (born 15 March 1994)[1] is a Botswana middle-distance runner who competes in the 800 metres.

Further improving on his record, Amos finished fifth in the event at the 2011 World Youth Championships in Athletics.

[7] At the Monaco Diamond League, he again set a meet record and world leading mark of 1:42.45.

[8] Beating Rudisha for the second time in the season, his performance was the fastest 800 m race since the 2012 Olympic final.

In the tactical affair, he maneuvered out of a box to pass world record holder David Rudisha in the last 50 metres.

[1] Amos ran a 1:42.14 in the summer of 2018 at the Monaco Diamond League meet, taking first place.

[13][14] On 12 July 2022, Amos was provisionally suspended from competition by the Athletics Integrity Unit after he tested positive for GW1516, a banned hormone and metabolic modulator that is not approved for use in humans.