Surname Sillu (Sillu 
) , around the globe, is a rare last name. The surname Sillu is habitual in Tanzania, where it is a rare surname, and India, where it is an extremely rare surname. More frequently, Sillu is the forename as well as the last name.
Bai, Mistri, Sharma, Sudhin, Kotwal, Kumari, Prasad, Yadav, Thakur, Sanjana, Ahirvar, Batlivala, Pradhan, Mariathas, Sebastian, Väina, Vella, Rishi, Reddy, Ram, Lal, Jou, Sahu, Khan, Devi, Orav, Malik, Mehta, Singh, Sunny, Kumar, Kutar, Patel, Rajan, Karkariya, and Panigrahy