Josephus Tan Joon Liang, better known as Josephus Tan, is a Singaporean criminal defence lawyer known for his pro bono work. In 2015, Tan received the Singapore Youth Award.

On 22 September 2010, also the Mid-Autumn Festival of 2010, at a park in Woodlands, Singapore, 32-year-old Hoe Hong Lin, a Malaysian-born Singapore Permanent Resident, was attacked and fatally stabbed in the heart. The killer, 20-year-old Soh Wee Kian, a full-time National Serviceman who went AWOL at the time of the stabbing, was arrested by police while pending trial in a military court for desertion offenses, and charged with murder. It was also discovered that Soh had attacked three more women and stabbed them in a similar fashion as he did to Hoe, after stalking them. Soh, who was found to be suffering from an adjustment disorder with a depressed mood, pleaded guilty to a lesser charge of manslaughter for killing Hoe and another charge of stabbing one of his three surviving victims, and sentenced to life imprisonment on 22 August 2013.