Obhoi territoriyavi, b a h r i territoriyavi, mintaqai bahrie, ki ba sohil yo obhoi dokhilii davlate payvast buda, qismi territoriyai davlatro tashkil medihad. Obhoi territoriyavi, sath, qari onho va fazoy havoii in obho ba doirai istiqloliyati davlati nazdisohili dokhil meshavand. Rejimi Obhoi territoriyaviro Konvensiyai baynalkhalqi oid ba bahrhoi territoriyavi va mintaqai hamshafat soli 1958 (SSSR onro 20 oktyabr I960 etirof kardaast) va inchunin qonuni dokhilii davlathoi judogona tanzim mekunand.
Hududi Obhoi territoriyavi az khati jazri kalontarin yo sarhadi obhoi dokhili yo az khati ba nom bazisi cap meshavad. Huquqi baynalkhalqi az 12 m mili bahri ziyod shudani khududi Obhoi territoriyaviro man mekunad. To soli 1975 karib 100 davlat Obhoi territoriyavii pahnoiyashon to 12 m mil doshtand.
22 davlati digar binobar hal namudani masalai pahnoii Obhoi territoriyavi dar Konvensiyai soli 1958 bari Obhoi territoriyaviro to 200 m mil muqarrar kardand (az jumla Braziliya, Peru, Serra-Leone, Urugvay va Ekvador). SSSR .tarafdori mustahkam namudani limiti Obhoi territoriyavi dar hududi 12 mil buda, dar ayni hol tayyor ast, ki huquqi mustaqil doshtani davlathoi nazdisohiliro ba justuju va tadqiqi hayvonot, nabotot va madanhoi mintaqai bahrii ba Obhoi territoriyavi payvast, etirof namoyad.
Kishtihoi tamomi davlatho bo rioyai qoidahoi Konvensiya haq dorand az Obhoi territoriyavi guzarand (guzashtani onho boyad amniyati davlati nazdiso- hiliro khalaldor nakunad, kishtihoi zeriobi boyad az rui ob guzarand va gayra.
Yak qator davlatho (az jumla SSSR) muqarrar kardaand, kishtihoi harbii khoriji badi ijozati peshakii davlati dakhldor huquqi az Obhoi territoriyavi guzashtan va ba bahrhoi dokhili daromadanro paydo mekunand. Dar Obhoi territoriyavi aksari davlatho be qarori makhsus bo kishtihoi khoriji guzarondani tadqiqot, korhoi gidrografi va shikor man ast.