Hosta

CPU is a computer's central processing unit.

CPU may also refer to:

Science and technology

Carboxypeptidase B2, a human enzyme
Critical Patch Update, software updates in Oracle products such as Oracle Database and Java

Caribbean Postal Union, an association of postal (post office) administrators in the Caribbean region
Central Philippine University
Central Policy Unit, a head advisory unit to the Chief Executive of Hong Kong
Central Police University, a police academy in Taiwan
China Pharmaceutical University
Clark Public Utilities, a public electric and water utility located in Clark County, Washington
Columbia Pacific University, former unaccredited distance learning school in California
Commonwealth Press Union, an association of newspapers and news agencies
Communist Party of Ukraine
Computer Professionals' Union, an organization of information and technology professionals, practitioners, and workers in the Philippines
Contract postal unit, any contracted affiliate of the United States Postal Service
Conférence des Présidents d'Université, an organization of university presidents in France

Console Patron Units, the goddesses in Hyperdimension Neptunia
China Pharmaceutical University station, one of the terminal stations of Nanjing Metro Line 1.