CDD may refer to:
Entertainment Charlottesville Derby Dames, a roller derby league based in Virginia
Medicine and psychology Childhood disintegrative disorder, a rare condition that causes late-onset developmental delays Concentration deficit disorder, another term for sluggish cognitive tempo Conserved domain database, a collation of protein structural and functional motifs from several independent databases Craniodiaphyseal dysplasia, a bone disorder causing calcium build up in the skull
Science Collaborative Drug Discovery, a private software company with a web-based platform for managing drug discovery data Community-driven development, another software development technique Cooling degree day, a qualitative index used to reflect the demand for energy to cool a business Custom Debian Distribution, a customized Debian Distribution Cyclic delay diversity, a diversity scheme used in OFDM-based telecommunication systems
Other uses Cardenden railway station, station code Centre for Democracy and Development, a non-government organization in Africa Cidade de Deus (Rio de Janeiro), a neighbourhood in Rio de Janeiro, Brazil Community Development District, a government organization authorized by Florida Statutes Congregatio Discipulorum Domini, a Catholic order founded in China