| Datacap | Datacard | Datacard Corporation |
| Datacard Group | DataCash | Datacassette |
| Datacast | Datacasting | Datacenter |
| Datacenter bridging | Datacenter-in-a-Box | Datacenters |
| Datacentre | Datacert | Datach |
| DATACH J. League Super Top Players | Datach System | Datacine |
| DataCite | Datacite | Dataclysm |
| Datacodes for Switzerland | Datacodes of Switzerland | DataColada |
| Datacom | Datacom (disambiguation) | Datacom (Videocon) |
| Datacom Group | DATACOM/DB | Datacomm |
| DataComm | Datacommons.org | Datacommunications |
| DATACOMP | Datacomp | Datacomp (data compression) |
| DATACOMP (disk compression) | Datacompression | Datacomputer |
| Datacopia | DataCore | DataCore Software |
| Datacube | Datacube Inc | Datacube Inc. |
| Datadawai (airport) | Datadawai Airport | DataDetective |
| DataDiagramingML | DataDirect Networks | DataDirect Networks (DDN) |
| DataDisk | Datadog | DataDog |
| Datadot | DATADVANCE | DataDyne |
| DataEase | Dataease | DataEast |
| DataEncryptionStandard | DataExplorer | DataFax |
| Datafeed | DataFellows | Datafication |
| Datafile | DataFlash | Dataflash |
| DataFlex | Dataflex | Dataflow |
| Dataflow analysis | Dataflow architecture | Dataflow diagram |
| Dataflow graph | DataFlow Group | Dataflow language |
| Dataflow languages | Dataflow processor | Dataflow programming |
| Dataflow programming language | Dataflow variable | Dataflows |
| DataFlux | Dataflux | Datafly algorithm |
| Datafolha | Datafork TrueType | Dataforprogress.org |
| Dataframe | Dataframe (disambiguation) | Datafy |
| Dataganj | Dataganj (Assembly constituency) | Dataganj (Vidhan Sabha constituency) |
| Dataganj Assembly constituency | Dataganj Vidhan Sabha constituency | Datagen |
| DataGen Technologies | Dataglove | DataGlove |
| Datagnon | Datagnon language | Datagram |
| Datagram Congestion Control Protocol | Datagram Delivery Protocol | Datagram service |
| Datagram socket | Datagram Sockets | Datagram TLS |
| Datagram Transport Layer Security | Datagrams | DataGraph |
| DataGravity | DataGravity Inc. | DataGravity, Inc. |
| Datagrid | DataGrid | DataGrip |
| DataGuard | DataGueule | Datah Dawai Airport |
| Datah Dian, Kapuas Hulu | DataHand | Datahand |
| Datahaven | Datahoarder | Datahoarders |
| Datai | Datai Langkawi | Datai Subdistrict |
| Datai yingliangis | Dataiku | Dataindustrier AB |
| Datainspektionen | Dataism | DATAIX |
| Dataix | Datajack | Datajournalism |
| Datakhel | DataKind | Datakit |
| Datakortet | Datal Anggas, Alabel | Datala |
| Datalake | Dataless classification | Datalex |
| Datalight | Datalight C | Datalight DOS |
| Datalight DOS 6.22 | Datalight DOS 7.1 | Datalight Optimum-C |
| Datalight ROM-DOS | Datalight ROM-DOS 6.22 | Datalight ROM-DOS 7.1 |
| Datalight, Inc. | Datalink | Datalink (disambiguation) |
| Datalink layer | DataLink University College | Datalink university college |
| Datalist | DATAllegro | Datalog |
| Datalogger | Datalogic | Datalogic Corporation |
| Datalogic S.p.A. | Datalogics | Datalogisk Institut, Københavns Universitet |
| Datalogisk Institut, Kobenhavns Universitet | Datalogix | Datalogy |
| DatalogZ | Datalore | Datalore (Star Trek: The Next Generation) |
| Datalore (TNG episode) | DataLounge | Datam Polystar |
| Datam Polystar Co, Ltd. | DataMaker | Dataman |
| DataMapper | Datamapper | Datamapper (Ruby) |
| DataMapper (Ruby) | DataMarket | Datamart |
| DataMart | Datamaster | DataMaster |
| DataMaster (Autometric) | Datamaster (database management system) | Datamaster (disambiguation) |
| DataMaster (disambiguation) | Datamaster (IBM) | DATAmatic 1000 |
| Datamatic D-1000 | Datamatics | Datamatics Global Services |
| Datamatics Global Services Ltd | Datamation | Datamatrix |
| DataMatrix | Datamatrix code | Datamax UV-1 |
| DataMeet | Datames | Datames (insect) |
| Datames guangxiensis | Datames mouhotii | Dataminae |
| Datamine | Datamini | Datamining |
| Dataminr | DataMirror | Datamirror |
| Datamodel | Datamodeling | Datamodels |
| DataMonitor | Datamonitor | Datamosh |
| Datamoshing | Datamost | DataMost |
| DataMotion | DataMotion, Inc. | Datamyne |
| Datan | Datan (disambiguation) | Datana |
| Datana angusii | Datana chiriquensis | Datana contracta |
| Datana diffidens | Datana drexelii | Datana integerrima |
| Datana major | Datana ministra | Datana modesta |
| Datana neomexicana | Datana perspicua | Datana ranaeceps |
| Datana robusta | Datana ruficollis | Datanal |
| Datanet | DataNet | DATANET-30 |
| Datanet-30 | Datanetics | DataNeutrality |
| Datang | Datang (disambiguation) | Datang Group |
| Datang International Power | Datang International Power Generation | Datang International Power Generation Co., Ltd. |
| Datang International Power Generation Company | Datang Intl Power | Datang Mobile |
| Datang Power | Datang Station | Datang station |
| Datang station (Changsha Metro) | Datang station (disambiguation) | Datang station (Guangzhou Metro) |
| Datang Subdistrict | Datang Subdistrict, Guangzhou | Datang Telecom |
| Datang Telecom Group | Datang Telecom Technology | Datang Town |
| Datang town (Chengdu Datang) | Datang Town (disambiguation) | Datang Township |
| Datang Youxia Zhuan | Datang, Pujiang County | Datang, Pujiang County, Sichuan |
| Datang, Sichuan | Datang, Zhuji | Datanga |
| Datanga minor | Datanglong | Datangpu |
| Datangshan | Datano | Datanoides approximans |
| Datanoides fasciata | Datanoides fasciatus | Datanomic |
| Datansha | Datansha Island | Datansha South Station |
