| St. John's City South | |
| Type: | Parliamentary |
| Parl Name: | Parliament of Antigua and Barbuda |
| Region Label: | Parish |
| Region: | Saint John |
| Polling Divisions: | 7 |
| Electorate: | 1,652 (2018) |
| Seats: | 1 |
| Party: | Antigua and Barbuda Labour Party |
| Member: | Steadroy Benjamin |
St. John's City South is a parliamentary constituency in St. John's, Antigua and Barbuda.In 2018, the constituency had 1,652 registered electors, up from 1,459 in 2014.
| Election Name: | 2018 Antiguan general election in Saint John's City South |
| Popular Vote2: | 355 |
| Percentage2: | 27.89% |
| Leader3: | Kimberley Grant |
| Party3: | DNA |
| Party2: | United Progressive Party (Antigua and Barbuda) |
| Popular Vote3: | 23 |
| Percentage3: | 1.81% |
| Member of Parliament | |
| Posttitle: | Subsequent MP |
| Before Election: | Steadroy Benjamin |
| Before Party: | Labour |
| After Election: | Steadroy Benjamin |
| Leader2: | Michael Burton |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 2014 Antiguan general election |
| Previous Year: | 2014 |
| Election Date: | 21 March 2018 |
| Next Election: | Next Antiguan general election |
| Next Year: | Next |
| Country: | Antigua and Barbuda |
| Leader1: | Steadroy Benjamin |
| Party1: | Antigua and Barbuda Labour Party |
| Popular Vote1: | 895 |
| Percentage1: | 70.31% |
| After Party: | Labour |
| ALP | 31.60% | 50.97% | 56.97% | 68.03% | 55.82% | 60.34% | 65.35% | 51.80% | 56.01% | 62.92% | |
| UPP | - | - | - | 28.35% | 37.80% | 34.65% | 34.65% | 48.20% | 43.31% | 37.08% | |
| PLM | 57.48% | 49.03% | 43.03% | 3.62% | - | - | - | - | - | - | |
| Others | 10.92% | 0.00% | 0.00% | 0.00% | 6.37% | 5.01% | 0.00% | 0.00% | 0.69% | 0.00% | |
| Invalid | 12 | 2 | 8 | - | 6 | 12 | 11 | 12 | 14 | 7 | |
| Valid | 1,190 | 1,236 | 1,048 | 857 | 910 | 1,059 | 1,293 | 1,280 | 1,457 | 1,316 | |
| Total | 1,202 | 1,238 | 1,056 | 857 | 916 | 1,071 | 1,304 | 1,292 | 1,471 | 1,323 | |
| Registered | 2,816 | 1,306 | 1,388 | 1,605 | 1,706 | 1,901 | 2,103 | 1,432 | 1,849 | 1,459 | |
| Turnout | 42.68% | 94.79% | 76.08% | 53.40% | 53.69% | 56.34% | 62.01% | 90.22% | 79.56% | 90.68% |
| 1971 | Sydney Christian | PLM | 57.48% | |
| 1976 | Christopher O'Mard | ALP | 50.97% | |
| 1980 | Christopher O'Mard | ALP | 56.97% | |
| 1984 | Christopher O'Mard | ALP | 68.03% | |
| 1989 | Christopher O'Mard | ALP | 55.82% | |
| 1994 | Steadroy Benjamin | ALP | 60.34% | |
| 1999 | Steadroy Benjamin | ALP | 65.35% | |
| 2004 | Steadroy Benjamin | ALP | 51.80% | |
| 2009 | Steadroy Benjamin | ALP | 56.01% | |
| 2014 | Steadroy Benjamin | ABLP | 62.92% | |
| 2018 | Steadroy Benjamin | ABLP | 70.31% | |
| 2023 | Steadroy Benjamin | ABLP | 66.1% |