Category 4 or Category IV may refer to:
Category 4 cable, a cable that consists of four unshielded twisted-pair wires Category 4 fireworks, British fireworks that are for sale only to professionals Category 4 tropical cyclone, on any of the tropical cyclone intensity scales Any of several hurricanes listed at list of Category 4 Atlantic hurricanes or list of Category 4 Pacific hurricanes Category 4 pandemic, on the pandemic severity index, an American influenza pandemic with a case-fatality ratio between 1% and 2% Category 4 winter storm, on the Northeast snowfall impact scale and the Regional snowfall index Any of several winter storms listed at List of Northeast snowfall impact scale winter storms and List of regional snowfall index category 4 winter storms Category 04 non-silicate mineral, a non-silicate minerals for oxide minerals Category four stadium, a football stadium of the highest quality as ranked by the UEFA Category IV New Testament manuscripts, a category of New Testament manuscripts for manuscripts of the D text or Western text-type Category IV measurement, a measurement category for measurements performed at the source of the high-voltage installation Category IV vintage car condition, a very good condition category for vintage cars Category IV Armed Forces Qualification Test scores, a calculated ranking on the Armed Forces Qualification Test Category IV protected area, a protected area classification for a habitat or species management area by the International Union for Conservation of Nature
See also Class 4 (disambiguation), class/category equivalence (for labeling) Type 4 (disambiguation), type/category equivalence (for labeling) Group 4 (disambiguation), group/category equivalence (for labeling)