CTAB

CTAB may refer to:


 * Cetyl trimethylammonium bromide, an antiseptic agent also used in DNA extraction
 * Chemical table file, a data file type used in chemoinformatics
 * Canadian Technology Accreditation Board, an accreditation board for post-secondary technology programs in Canada
 * "Lungs Clear To Auscultation Bilaterally", an abbreviation used in medical records for lung examination