The following Manly Warringah Athletes have represented NSW at National Championships:
| Year | Girls | Boys |
| 1972 | B Ryan | B Harrison |
| 1973 | G Allan | |
| 1974 | G Kirk | M Gray |
| 1975 | D Westerway | |
| 1976 | ||
| 1977 | S Perry | |
| 1978 | L Sharp | |
| 1979 | C Emmerson J Jones N Liestenschneider |
S Cleary |
| 1980 | ||
| 1981 | P Mapstone | |
| 1982 | K Sirotic A Connolly |
|
| 1983 | T Pauli | |
| 1984 | ||
| 1985 | N Farquhar | |
| 1986 | A Marov | |
| 1987 | A Hayes | N Farquhar S Dorney |
| 1988 | C Woodoff | |
| 1989 | ||
| 1990 | A Hayes | |
| 1991 | J Murphy | |
| 1992 | P Taylor | F Dowling P Elvy A Nappin |
| 1993 | P Elvy | |
| 1994 | S Fraser N Haines |
|
| 1995 | P Elvy D Geddes |
|
| 1996 | D Donnelly L Wright |
|
| 1997 | L Burnes | D Geddes |
| 1998 | ||
| 1999 | E Wood | |
| 2000 | ||
| 2001 | ||
| 2002 | E Pollett | |
| 2003 | ||
| 2004 | T Morton | |
| 2005 | K Thompson | |
| 2006 | ||
| 2007 | E Bettiol S Hulme |
|
| 2008 | A Bettiol | |
| 2009 | ||
| 2010 | T Page Billington | P Frith |
| 2011 | R Ritchie | M Le Ban B Simonson |
| 2012 | A Walker Charles | |
| 2013 | N Breslin K Edwards |
B Carter |
| 2014 | E Grinbergs | A Willett B Lynch |
| 2015 | B Carter H Blaskett |
|
| 2016 | A Willett | |
| 2017 | E McMillen | |
| 2019 | C Bowtell
M Hatfield |
.