Macs or MACS may refer to: a Mac computer, a nickname for the Macintosh brand "macs" (short story), by Terry Bisson Magellanic Catalogue of Stars, a catalogue of positions for stars covering large areas around the Large and Small Magellanic Cloud MAssive Cluster Survey, a survey of distant galaxy clusters that are very bright in X-ray Magnetic-activated cell sorting Manual Ability Classification System for manual dexterity in cerebral palsy Minimal Access Cranial Suspension, a form of facial surgery or rhytidectomy used to reduce wrinkles and lift sagging facial tissue MACS (software), Model-based Analysis of ChIP-Seq, software for finding peaks in ChIP-Seq data used in computational biology Multicenter AIDS Cohort Study Mac's Convenience Stores, a chain of stores in Canada Metropolitan Area Commuter System, a bus system in Fairbanks, Alaska Mountain Ash Comprehensive School, in Wales See also Macks Creek, Missouri Mac (disambiguation) Max (disambiguation) Macx (disambiguation) Macs (disambiguation) MAKS (disambiguation)