Yes, but it was always a bit of a tourist trap: one-way service only, tickets overpriced and not integrated with the rest of the Sydney network, etc. And sadly it was not steam powered.
https://en.wikipedia.org/wiki/Sydney_Monorail
Hah, literally named Sydney Monorail - thanks
Okay, now I really want to ride a steam-powered monorail
Literally the Simpsons episode
Hah, literally named Sydney Monorail - thanks