Geberit (Alemannic German pronunciation: [ˈɡeberɪ:t]) is a Swiss multinational group specialized in manufacturing and supplying sanitary parts and related systems. It is a leader in its field in Europe with a global presence through its subsidiaries.

In 1874, Caspar Melchior Gebert started a plumbing business in Rapperswil (SG), Switzerland. In 1905, he began to manufacture parts. His toilet tank, the Phoenix, made of lead-coated wood and with lead fittings (particularly a flushing mechanism, the first of its kind), was revolutionary and a great success. When Gebert died in 1909 his sons Albert and Leo took over the business. In the following years, the company expanded within Switzerland as well as to neighboring countries, and added new products (pipes, taps and valves). In the 1930s, the company was a pioneer of plastic parts in the sanitary industry.

The Second World War set back the company, but it soon recovered and, in 1952, introduced the first all-plastic toilet tank made of polyethylene.

In 1953, Heinrich and Klaus Gebert inherited control of the company and named it Geberit. The company opened a distribution subsidiary and new branches in Europe, which, besides parts, also offered technical services. As Germany was considered a growth market, the first international subsidiary was opened there in 1955, in Pfullendorf, which was also going to be the site of the first factory outside Switzerland. Since then, a number of subsidiaries were created in European countries, including France (1959) and Austria (1965). The company moved from Rapperswil to a larger facility in Rapperswil-Jona and introduced a concealed tank system.

In the 1970s, Geberit introduced more new products, such as full drainage systems, flush-mounted systems, and new components for the hygiene sector. A third plant was opened in 1972 in Pottenbrunn/Sankt Pölten, Austria. The company also created subsidiaries in Denmark, Belgium and the Netherlands. The company made an attempt to enter the American market, creating a subsidiary in Michigan, Indiana. However, the U.S. presence remained insignificant for years.

In 1977, the company entered the installation systems market, which went on to become the most important market of the company. In 1980, the German facilities were expanded and a warehouse complex was opened at its Rapperswil-Jona headquarters. It also acquired a big German player in the installation-elements market, Sanbloc. In 1986, it began automating its production. In 1989, it acquired a stake in FAE Fluid Air Energy, joining the fresh water supply systems sector.

In 1990, the facilities of Pottenbrunn were expanded. In 1994, a new plant was established in Lichtenstein in Eastern Germany to take advantage of the new markets after the end of the Cold War. In 1991, the Gebert family withdrew from managing the company and the first outsider was appointed CEO of the company: Gunter F. Kelm. The company continued its expansion, with new facilities in Rapperswil-Jona, a factory for its Mepla brand in Givisiez, and new international subsidiaries in Italy and Portugal.

In 1995, the Geberts sold Geberit to the British private equity firm Doughty Hanson. With the new cash, the company started a series of acquisitions, which included Italy's Deriplast and Walking Pipe Italiana, Germany's Buchler Werkzeugbau AG and the United Kingdom's Caradon Terrain Ltd. In June 1999, Geberit was listed on the SWX Swiss Exchange. In July 1999, it raised its stake in FAE Fluid Air Energy to 70 percent, with an agreement to take full control of FAE by 2001.