DTAP may refer to:

• DTaP, a vaccine for diphtheria, tetanus and pertussis
• DTAP, a software development approach
• Direct Transfer Application Part (DTAP), a radio telecommunication protocol for GSM or CDMA
• Direct internet TAP

• OxT
• Ox Tales (Animated TV series)
• Oxt (disambiguation)
• OXT (disambiguation)
• Oxted Line
• Oxtellar XR
• Oxtoby, David
• Oxton, David
• Oxton (ward)
• OX TV
• Oxudercidae
• Oxus treasure
• Oxvang
• OXV: The Manual
• Ox-Wagon Sentinels
• Oxxxymiron
• Oxya
• Oxyacanthus sativus
• Oxyacanthus uva-crispa
• Oxy-acid
• Oxyacids
• Oxyaenid
• Oxyalcia mira
• Oxyalkylation
• Oxyartes (insect)