Steve Irwin hadmempunyai twodua childrencahaya mata: aseorang perempuan daughterbernama, Bindi Sue Irwin (borndilahirkan pada [[24 July]] [[1998]]), anddan aseorang sonlelaki bernama, Robert (Bob) Clarence Irwin (borndilahirkan pada [[1 December]] [[2003]]). Nama Bindi Sue'snamediambil isdari derivednama fromdua two ofanjing Steve's dogs. Anjing His first dogpertamanya, Bindi, wasdibunuh accidentallydengan killedtidak bysengaja aoleh hunterseorang pemburu, anddan anotheranjing dogkeduanya, Sui, from which their daughter'siaitu middlenama nametengah wasanak derivedperempuannya, diedmeninggal inpada June 2004.
===Insiden BabyBayi Bob===
MajorTengkarah controversyutama arosetimbul duringsemasa apertunjukan publicawam show onpada [[2 January]] [[2004]], whenapabila Irwin carriedmengangkat hisanak infant sonlelakinya, Bob, indi onesalah armsatu whiletangannya feedingsambil amenyuap chickenbangkai carcassayam tokepada abuaya crocodiledengan withtangan the other handsebelahnya. TheJarak infantantara wasanaknya closedan tobuaya theitu crocodile,amat andkecil. comparisonsWartawan-wartawan weremelakukan madeperbandingan ininsiden theini pressdengan withinsiden [[Michael Jackson]]'sdanglingmenhayunkan ofanaknya hisdi sonluar outsidetingkap adi German apartment window. In addition, child welfare groups, [[animal rights]] groups, and many of Irwin's television viewers criticised his actions as being irresponsible and tantamount to [[child abuse]]. Irwin claimed that any danger to his son was only a perceived danger and that he was in complete control of the situation, and consistently refused to apologize for his actions despite considerable public outcry both in Australia and abroad. His defenders pointed to his many decades of hands-on experience and direct interaction with crocodiles. Terri Irwin claimed that their child was in no more real danger than a child being taught to swim would be. No charges were filed (although the police did visit Irwin at his home and advised him not to repeat the incident).
