NDSS may refer to the following:
Nanaimo District Secondary School in Nanaimo, British Columbia, Canada Napanee District Secondary School in Napanee, Ontario, Canada National Diabetes Services Scheme New Democratic Party of Serbia (Nova demokratska stranka Srbije), a political party in Serbia Niagara District Secondary School in Niagara-on-the-Lake, Ontario, Canada Niger Delta Science School in Port Harcourt, Nigeria North Delta Secondary School in Delta, British Columbia, Canada Norwell District Secondary School in Palmerston, Ontario, Canada National Down Syndrome Society, an organization based in Manhattan, New York City, New York, USA Niggaz Done Started Something song by rapper DMX featuring rap group The LOX and Mase from the album It's Dark and Hell Is Hot