The Sierra Leone delegation included two track and field athletes; Ibrahim Turay, a sprinter and Ola Sesay, a long jumper.

[1] Two athletes from Sierra Leone qualified for the London games; Ibrahim Turay in the track and field 200 m and Ola Sesay in the long jump.

[6][9] He competed on 7 August in heat two, finishing last out of eight athletes, despite achieving a personal best time of 21.90 seconds.

[11] Competing at her first Olympics,[12] Ola Sesay was notable for carrying the Sierra Leone flag for the opening ceremony.

[6][13] She competed on 7 August in Group A, and finished joint 11th out of 16 athletes with Philippines' Marestella Torres, both of whom posting a jump of 6.22 metres.