David Haerewa has appealed his 17-year sentence for killing Moko Rangitotehiri, days after his partner lodged her sentence.
Haerewa lodged the appeal on July 22, following Tania Shailer's appeal on July 19.
A Court of Appeal spokeswoman said a date for the appeals to be heard had not yet been set and it was unknown whether the pair would have their appeals heard together.
Shailer and Haerewa were sentenced last month to 17 years in jail with a minimum non-parole period of nine years after pleading guilty to manslaughter.
Their sentence was the longest handed out in New Zealand for the manslaughter of a child.