A record number of 437,839 students from 2,728 schools entered.

Results are given below for the 1989 AMC, held on Tuesday 1 August. There were 4 perfect scores.

Medals were presented at a function held at the Australian Academy of Sciences, Canberra, on Monday 23 October, by Professor Derek Robinson, representing Professor Ren Potts, of the University of Adelaide.

The medallists were:

AMC Medallists from the Junior, Intermediate & Senior Divisions
NAME	SCHOOL		YR
BEAN Richard	Anglican Church Grammar School	QLD	8
BENNETT Ashley	Rossmoyne Senior High School	WA	8
BOON Michael	St Virgil's College	TAS	8
GRAY Airlie	Whitsunday Anglican School	QLD	8
HAWKINS William	Canberra Grammar School	ACT	7
HENDERSON Anthony	Sydney Grammar School	NSW	8
LORCH Benjamin	Mt Scopus Memorial College	VIC	8
McCALLUM Rupert	North Sydney Boys High School	NSW	8
MITCHELL Andrew	Knox Grammar School	NSW	8
NG Chee*	The Chinese High School	SIN	8
SIRISENA Gian	Burnside High School	NZ	8
VOGT Emma	St Thomas More College	QLD	8
WILKIN Graeme	Scotch College	VIC	8
YOUNG David	Haileybury Newlands School	VIC	8
BACKSAI Zoltan	Nightcliff High School	NT	10
CAPELLE Lisa	Epsom Girls Grammar School	NZ	10
CHIN David	Killara High School	NSW	10
DARROCH Robin	Canberra Grammar School	ACT	9
FUNG Avery	Randwick Boys High School	NSW	10
OPPENHEIM Andrew	Melbourne C of E Boys Grammar School	VIC	9
ROBERTS Martin	Clarence High School	TAS	10
SAWON Justin	Heathfield High School	SA	10
SELLNER Stuart	Rossmoyne Senior High School	WA	10
CALEGARI Danny*	Melbourne C of E Boys Grammar School	VIC	12
ECKETT Christopher	Brisbane Grammar School	QLD	12
FAULDS Stuart	Otago Boys High School	NZ	12
GEIRINGER Felix*	Onslow College	NZ	12
GORDON Scott	Blackwood High School	SA	12
KISIN Mark	Melbourne C of E Boys Grammar School	VIC	12
LAU Joseph	North Sydney Boys High School	NSW	11
MINNEY Aaron	St Joseph's College	NSW	12
O'CALLAHAN Robert*	Auckland Grammar School	NZ	12
WEATHERSON Brian	Mazenod College	VIC	11
* denotes perfect score - BH Neumann Certificate