McIntosh Laboratory is an American high-end audio manufacturer based in Binghamton, New York, co-founded in 1949 by Frank H. McIntosh and Gordon Gow. The company is known for its handcrafted amplifiers distinguished by signature black glass front panels, illuminated blue output meters, and green logo lighting — design cues that have remained consistent for decades.

McIntosh builds tube and solid-state power amplifiers, integrated amplifiers, preamplifiers, stereo tuners, loudspeakers, turntables, headphone amplifiers, and home theater processors. The brand is especially revered for its tube amplifiers and for innovations such as its Unity Coupled Circuit output transformer and Autoformer technology, which are used across product lines including the MC275 tube amplifier and the MC1.25KW monoblocks. McIntosh gear powered the sound system at Woodstock in 1969 and has been associated with studios and artists including the Grateful Dead's Wall of Sound.

While strongly rooted in home hi-fi and audiophile listening, McIntosh also produces professional and studio-oriented equipment, and its products frequently appear in recording and mastering environments. The company operates as part of the McIntosh Group alongside sister audio brands.

McIntosh has 115 products cataloged on Equipboard, including Power Amplifiers, Preamps, and Turntables. Their gear is featured by 5 artists, with the strongest followings in Rock, Folk, World, & Country, and Hip Hop. Notable users include Neil Young, Jerry Garcia, and Phil Lesh. Most McIntosh products sit firmly in the high-end, boutique range.