SITC

SITC may refer to:


 * Smuggling Interdiction and Trade Compliance, a small, nationwide program within the United States Department of Agriculture, implemented to detect and stop the smuggling of agricultural commodities
 * Social in the City, fan events in Birmingham (Winter Edition since 2019) and London (Summer Edition since 2020)
 * Society for Immunotherapy of Cancer, a professional society for advancing the science and application of cancer immunotherapy
 * Standard International Trade Classification, a classification of goods used to classify the exports and imports of a country to enable comparing different countries and years
 * Summer in the City (event), an annual YouTube fan event in London (2009-2019)