A hunt is under way in Premier Daniel Andrews' department for a public servant who has been sabotaging the online profile of Labor Senator Penny Wong.

Someone working in the 950 strong department has been getting into the Wikipedia profile on Senator Wong, Labor's leader in the upper house of federal Parliament, and deleting references to her two children.

Senator Penny Wong's online profile has been sabotaged. Credit:Alex Ellinghausen

Senator Wong was a leading figure in the push for same-sex marriage who has been outspoken against attacks on children of same-sex couples as a "stolen generation."

The anonymous public servant behind the trolling could be in hot water, if caught, with the department saying its employee's online activities could put them in breach of the Victorian Public Sector Code of Conduct.