Pornography is fuelling an increase in the number of young people committing acts of domestic violence, one of the state's top cops says.

NSW Police assistant commissioner Mark Murdoch said teaching young men how to respect women was a critical "battle front" in the fight against domestic abuse.

The NSW police assistant commissioner says the rise of pornography and domestic violence are linked. Credit:Gabriele Charotte

"Common sense would tell you there has to be a linkage between pornography and lack of respect in relationships between young people," Mr Murdoch said.

"The fastest growing part of the problem of domestic violence is young people. We are seeing more young people put before courts than we have ever seen," he said.