Australia's Brainiest Kid is a game show produced in Australia in May 2004 and broadcast by Australian TV station the Seven Network during November and December 2004.

The show was publicised through Australian primary schools. Over 5000 children sat the online test, some of whom were selected to sit the supervised written test. Forty-eight of these appeared on the show. All of them won copies of the 2004 edition of Encyclopædia Britannica.

Twelve of them played in each of the four heats. Six went on to the second round and three went on to the third round. Everybody in the third round went on to the final; they were competing for an Apple Computer's iBook.

The winner of the final, Aaron Chong, won the "prestigious" title of Australia's Brainiest Kid and A$20 000 to be held in trust until he turns 18.

First round

The first round contains twelve multiple choice general knowledge questions (four possibilities for each question). The children have five seconds to answer each question and earn one point for each correct answer.

In the final, five children went on to the second round after this. The remaining seven played three more questions before the tiebreaker (see below).

Second round

In the second round, children must choose two categories and have 45 seconds (60 seconds in the final) for each category to answer as many questions as possible, earning one point per question.

There are twelve categories in all and each category can only be chosen once, making the order of play important (see below).

Third round

In the third round, children must choose numbers from a 6x6 "memory board" (called that because the categories of questions behind the numbers are only revealed for 10 seconds). There are five (six in the final) questions in each child's special subject and 21 (18 in the final) general knowledge questions.

Correct answers to general knowledge questions earn one point, questions from their special subject two, and questions from other children's special subjects three.

Questions can only be attempted once.

The third round was sometimes stopped early because one child has such a large lead that they were guaranteed to win.

In the final, two (?) extra questions were answered by each child before a winner was found.

Matching Pairs

Matching Pairs is the tiebreaker game. Two lists of four items are given. Each item in one list corresponds with exactly one item in the other list. The fastest children to match up the four pairs progressed to the next round.

Code breaker

In the second and third rounds, the order of play is important. This game decides that order. Each digit corresponds to two or three letters, just as on a telephone keypad. The children are given a number code and a word clue. The order of play is the order in which the children find the answer.