Yes Victorian houses did have bathrooms in them.
The Victorian houses had a bathtub and sink that was connected to a sewage system as well as hot and cold running water.
Most Victorian houses used gas water heaters to heat the water that supplied the bathtub and sink with hot water.
The Victorian houses also had a flush toilet in them as well.
However there were some poorer living conditions in some Victorian era houses and those Victorian houses usually had a bathtub and sink but sometime no toilet and no running water.
In those houses the people shared an outside water pump and carried water into the house to take a bath and wash up.