Athletes
| # | Athlete | G · S · B | Total | ||
|---|---|---|---|---|---|
| 1 | German Chiaraviglio Men · 2002–23 | 14 Jun 1987 | Pole vault | 21 gold 9 silver 5 bronze | 35 |
| 2 | German Lauro Men · 2000–19 | 2 Apr 1984 | Shot put, Shot put (6 kg), Shot put (5 kg) +3 | 21 gold 8 silver 8 bronze | 37 |
| 3 | Osvaldo Suarez Men · 1955–67 | 17 Mar 1934 | 1500m, 5000m, 10,000m +2 | 20 gold 4 silver 2 bronze | 26 |
| 4 | Juan Ignacio Cerra Men · 1992–2015 | 16 Oct 1976 | Discus throw, Discus throw (1.5 kg), Hammer throw +1 | 19 gold 5 silver 7 bronze | 31 |
| 5 | Jennifer Dahlgren Women · 2000–19 | 21 Apr 1984 | Shot put, Discus throw, Hammer throw | 17 gold 10 silver 8 bronze | 35 |
| 6 | Beatriz Capotosto Women · 1977–88 | 16 May 1962 | 100m, 80m hurdles (76.2 cm), 100m hurdles +3 | 14 gold 7 silver 7 bronze | 28 |
| 7 | Juan Carlos Dyrzka Men · 1959–71 | 24 Mar 1941 | 400m, 110m hurdles, 400m hurdles +1 | 13 gold 9 silver 4 bronze | 26 |
| 8 | Andrea Avila Women · 1984–2000 | 4 Apr 1970 | High jump, Long jump, Triple jump +2 | 13 gold 7 silver 6 bronze | 26 |
| 9 | Beatriz Allocco Women · 1970–79 | 12 Apr 1955 | 100m, 200m, relays | 12 gold 3 silver 1 bronze | 16 |
| 10 | Noemi Simonetto Women · 1941–48 | 1 Feb 1926 | 100m, 80m hurdles, High jump +2 | 11 gold 4 silver 3 bronze | 18 |
| 11 | Ingeborg Mello Women · 1941–63 | 4 Jan 1919 | Shot put, Discus throw, Javelin throw | 10 gold 3 silver 5 bronze | 18 |
| 12 | Valerio Vallania Men · 1924–31 | 14 Jul 1906 | 110m hurdles, High jump, Long jump +1 | 10 gold 0 silver 2 bronze | 12 |
| 13 | Andres Charadia Men · 1985–95 | 10 Jul 1966 | Shot put, Discus throw, Hammer throw | 9 gold 7 silver 1 bronze | 17 |
| 14 | Yvonne Neddermann Women · 1972–83 | 14 Feb 1957 | 100m, 200m, 100m hurdles +5 | 9 gold 4 silver 8 bronze | 21 |
| 15 | Nazareno Sasia Men · 2017–24 | 5 Jan 2001 | Shot put, Shot put (6 kg), Shot put (5 kg) +3 | 9 gold 4 silver 3 bronze | 16 |
| 16 | Braian Toledo Men · 2008–18 | 8 Sep 1993 | Javelin throw, Javelin throw (700 g) | 9 gold 3 silver 5 bronze | 17 |
| 17 | Micaela Levaggi Women · 2014–26 | 12 Aug 1998 | 1500m, 3000m, 5000m +3 | 9 gold 3 silver 3 bronze | 15 |
| 18 | Marcela Lopez Espinosa Women · 1976–83 | 3 Jan 1962 | 400m, 600m, 800m +2 | 8 gold 9 silver 2 bronze | 19 |
| 19 | Tomas Mondino Men · 2021–26 | 27 May 2005 | 100m, 200m, relays | 8 gold 7 silver 9 bronze | 24 |
| 20 | Alejandra Garcia Women · 1990–2009 | 13 Mar 1973 | High jump, Pole vault, Long jump +1 | 8 gold 7 silver 5 bronze | 20 |
| 21 | Elian Gaspar Larregina Men · 2020–26 | 20 Feb 2000 | 400m, relays | 8 gold 7 silver 5 bronze | 20 |
| 22 | Belen Casetta Women · 2010–26 | 26 Sep 1994 | 5000m, 3000m steeplechase, 400m hurdles +1 | 8 gold 6 silver 4 bronze | 18 |
| 23 | Liliana Gongora Women · 1980–86 | 24 Nov 1965 | 800m, 1500m, 3000m | 8 gold 3 silver 0 bronze | 11 |
| 24 | Raul Ibarra (1914) Men · 1937–45 | – | 3000m, 5000m, 10,000m +1 | 8 gold 2 silver 1 bronze | 11 |
| 25 | Federico Bruno Men · 2011–22 | 18 Jun 1993 | 1500m, 5000m | 7 gold 5 silver 2 bronze | 14 |
Only international medals count: national championship titles are left out.