Neil de Silva (born 15 November 1969 on Trinidad) is a retired male track and field athlete from Trinidad and Tobago who specialized in the 200 and 400 metres.
His personal best time over 400 m was 45.02 seconds, achieved during the 1996 Olympics. He holds one national record, in 4 x 400 metres relay together with Patrick Delice, Alvin Daniel and Ian Morris, with 3:01.05 minutes achieved in the heats of the 1992 Summer Olympics.
| Representing | |||||
|---|---|---|---|---|---|
| 1988 | Sudbury, Canada | 7th | 100 m | 10.80 (-2.8 m/s) | |
| 7th | 200 m | 21.16 w (+4.2 m/s) | |||
| 1990 | Auckland, New Zealand | 8th | 100 m | 10.35 | |
| 4th | 200 m | 20.40 | |||
| – | 4 x 400 m relay | DQ | |||
| 1991 | Seville, Spain | – | 200 m | DQ | |
| – | 4 x 400 m relay | DQ | |||
| 1992 | Barcelona, Spain | 14th (qf) | 200 m | 20.661 | |
| 7th | 4 x 400 m relay | 3:03.31 | |||
| 1993 | Toronto, Ontario, Canada | 17th (h) | 200 m | 21.43 | |
| bgcolor=silver | 2nd | 4 x 400 m relay | 3:07.02 | ||
| Ponce, Puerto Rico | bgcolor=silver | 2nd | 400 m | 46.07 | |
| 5th | 4 × 100 m relay | 40.73 | |||
| bgcolor=silver | 2nd | 4 × 400 m relay | 3:06.96 | ||
| Stuttgart, Germany | 12th (sf) | 400 m | 45.66 | ||
| 19th (h) | 4 x 100 m relay | 40.24 | |||
| 1994 | Victoria, British Columbia, Canada | 7th | 400 m | 46.27 | |
| bgcolor=cc9966 align="center" | 3rd | 4 x 400 m relay | 3:02.78 | ||
| 1995 | Mar del Plata, Argentina | 12th (h) | 200 m | 21.03 | |
| 3rd | 4 x 400 m relay | 3:02.24 | |||
| Gothenburg, Sweden | 28th (qf) | 200 m | 21.01 | ||
| 22nd (h) | 4 x 100 m relay | 40.09 | |||
| 1996 | Atlanta, United States | 16th (sf) | 200 m | 21.26 | |
| 13th (sf) | 400 m | 45.56 | |||
| 1999 | Bridgetown, Barbados | 3rd | 400 m | 45.61 | |
| Pan American Games | Winnipeg, Canada | 5th | 400 m | 45.42 | |
| 8th (h) | 4 x 400 m relay | 3:08.28 | |||
| Seville, Spain | – | 400 m | DQ | ||
| 2000 | Sydney, Australia | 54th (h) | 400 m | 46.84 | |
| 24th (h) | 4 x 400 m relay | 3:07.51 | |||