 He was educated at Coláiste Mhuire, where he excelled in his studies which included an A in Higher Level Mathematics.He went on to study economics at University and has a successful career in that field

Kelleher has won four all stars for his performances for Dublin in 1978, 1977, 1975 and 1974, a feat yet to be matched by any left full back.He won three all-Ireland medals for Dublin in 1977, 1976, 1974.