Founded 1955 - Reestablished 1986 - Affiliated to the Athletic Association of Ireland
No St Peter's AC athlete has yet set an "absolute" Irish national senior record while a member of the club. However there have been 5 AAI Irish national championship best performances and an NACAI national senior record set by the club's athletes.
Indoor championship best performances are shown in italics.
| 2004 | AAI CBP | 60m | U18 Boys | Peter McDonald | 7.00 |
| 2009 | AAI CBP | High Jump | U14 Boys | Mark Rogers | 1.68 |
| 2004 | AAI CBP | Javelin | U18 Boys | Peter McDonald | 55.53 |
| 1988 | NACAI record | 400m Hurdles | Sen Women | Maria Mackin | 1:03.05 |
| 2009 | AAI CBP | Javelin | Jun Women | Olivia McDonald | 39.39 |
| 2008 | AAI CBP | Javelin | U19 Girls | Olivia McDonald | 40.70 |
10 of the official championship best performances in AAI Leinster Championships are currently held by athletes who set them while representing St Peter's AC.
Indoor championship best performances are shown in italics.
| 2004 | Leinster CBP | 60m | U18 Boys | Peter McDonald | 7.24 |
| 2005 | Leinster CBP | High Jump | U15 Boys | Kevin McManus | 1.66 |
| 2009 | Leinster CBP | High Jump | U14 Boys | Mark Rogers | 1.60 |
| 2009 | Leinster CBP | High Jump | U14 Boys | Mark Rogers | 1.58 |
| 2001 | Leinster CBP | Javelin | U15 Boys | Peter McDonald | 43.06 |
| 2000 | Leinster CBP | Javelin | U14 Boys | Peter McDonald | 38.60 |
| 2001 | Leinster CBP | 800m | U19 Girls | Aoife McCarthy | 2:25.08 |
| 2008 | Leinster CBP | Javelin | U19 Girls | Olivia McDonald | 36.14 |
| 2005 | Leinster CBP | Javelin | O40 Women | Maria Duffy | 21.39 |
| 2007 | Leinster CBP | Pentathlon | O40 Women | Maria Duffy | 1622 |