Arthur Stanley Brown (20 May 1912 – 6 July 2002) was an Australian man charged in 1998 for the 26 August 1970 rape and murder of Judith and Susan Mackay in Townsville, Queensland.
The jury failed to reach a verdict and a new trial was blocked on the grounds that Brown was too senile to be tried again.
Brown's arrest attracted wide publicity leading to a witness to the abduction of two children from Adelaide oval in 1973 identifying Brown as the man she had seen.
Brown is thus considered a prime suspect for the Beaumont children disappearance and the Adelaide Oval disappearances.