|795 by topic|
|Ab urbe condita||1548|
|Balinese saka calendar||716–717|
|Chinese calendar||甲戌年 (Wood Dog)|
3491 or 3431
— to —
乙亥年 (Wood Pig)
3492 or 3432
|- Vikram Samvat||851–852|
|- Shaka Samvat||716–717|
|- Kali Yuga||3895–3896|
|Japanese calendar||Enryaku 14|
|Minguo calendar||1117 before ROC|
|Seleucid era||1106/1107 AG|
|Thai solar calendar||1337–1338|
921 or 540 or −232
— to —
922 or 541 or −231
Year 795 (DCCXCV) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar. The denomination 795 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
- Saxon War: The Slav Obodrites, under their ruler Witzan, attack the northern Saxons in Liuni. He is killed in an ambush and succeeded by his son Drożko (Thrasco), who becomes a Carolingian dux. King Charlemagne leads a Frankish expeditionary force north from Mainz, and marches to the Elbe, where eastern Saxon rebels again surrender.
- Charlemagne creates the Spanish March, a buffer zone beyond the former province of Septimania. A group of Iberian lordships form a defensive barrier between the Umayyad Moors of Al-Andalus (modern Spain) and the Frankish Kingdom.
- Quarrels between the kings Cynan Dindaethwy and Hywel leave the way open for Caradog ap Meirion (the House of Rhos) to usurp the throne of Gwynedd (modern Wales).
- King Offa of Mercia receives diplomatic gifts from Charlemagne. He re-founds St. Albans Abbey, supposedly in thanks for overrunning East Anglia (approximate date).
- In the earliest recorded Viking raid on Ireland, they attack the monasteries at Iona (Inner Hebrides), Inishbofin and Inishmurray (approximate date).
- December 25 – Pope Adrian I, age 95, dies after a 23-year reign, and is succeeded by Leo III as the 96th pope of Rome.
- Paul the Deacon, a Benedictine monk at Monte Cassino, completes the History of the Lombards (approximate date).
- Æthelwulf, king of Wessex (approximate date)
- Babak Khorramdin, Persian military leader (or 798)
- Bernard of Septimania, Frankish duke (d. 844)
- Gregory IV, pope of the Catholic Church (d. 844)
- Judith of Bavaria, Frankish queen (or 797/805)
- Landulf I, gastald (or count) of Capua (approximate date)
- Lothair I, king and emperor of the Franks (d. 855)
- Mu Zong, emperor of the Tang Dynasty (d. 824)
- Nithard, Frankish historian (d. 844)
- Renaud d'Herbauges, Frankish nobleman (d. 843)
- December 25 - Adrian I, pope of the Catholic Church (b. 700)
- Ælfthryth of Crowland, Anglo-Saxon princess
- Bran Ardchenn, king of Leinster (Ireland)
- Malik ibn Anas, founder of the Maliki School (b. 711)
- Witzan, Obodrite prince