Boris

You must be kidding, it derives from Slavic name Borislav (Борислав in Cyrillic letters) which means "glorious fighter", from "бори-" meaning "to fight, to battle" ("бороться" meaning "to fight" in Russian), and "-слав" from "славный" meaning "glorious" (compare "слава" - "glory" - in Russian). Boris (Борис) is just a shortened form and not a diminutive. It can not originate from Turkish, since it has a common root "слав" with a number of other Slavic names (Станислав, Вячеслав etc.) and is widely used in all Slavic countries. It has nothing to do with snow leopards or whatever, and interpretation given here is ridiculous.

Uzbek Bo'ri and Tatar Бүре mean wolf. Tatar барс (bars) means "leopard", and the word for "tiger" (yulbaris) is a prefixed derivative (the cognate word in Mongolian does mean tiger, but old Tatar being the lingua franca of the Golden Horde and the Mongol elite it is difficult to disentangle them). Tatar is classified as Bulgar Turkish, but refers to the modern Russian Bulgars, not the multi-ethnic Old Great Bulgaria, the Turkic language of which is a different branch and scantly recorded. The Central Asian and European Turkic tribes lived among Steppe-Iranian (Alan), East Slavic, Baltic, Finnic and the remnants of east German peoples with similar lifestyles and each of the recorded languages is littered with loanwords from all of these sources to a lesser or greater degree. If Boris is a shortened from of Bogoris, then it remains an unknown origin.

Boris, Borys or Barys is a male name, of Bulgarian origin.[1]
Origin
Boris is first found in written records in the case of the Bulgarian ruler Prince Boris I (852-889), who adopted Christianity in 864 AD and imposed it on his people. His name came to be known in Europe in relation to this particular act. Moreover, after his death in 907 AD he was proclaimed the first Bulgarian saint, and traces of his cult during this period can be found as far away as Ireland. The Patriarchate of Constantinople recognized the canonization of St. Boris in 923 AD.[4] However, Prince Boris was not a Slav. He descended from the Bulgars. Among the Bulgars the name was known in its two forms: Boris and Bogoris.[5][6]
History
Boris started its worldwide spread with its adoption by the Rus' Slavs from Bulgaria. Bulgarian influence over the Rus started as early as the late 9th century during the reign of King(Tsar) Simeon, who sent numerous missions north to the Rus to spread the Bulgarian alphabet and culture. Bulgarian cultural missions intensified in the 10th century, during the reign of King(Tsar) Petar and with them the spread of Bulgarian names continued. It is speculated that the name of the Bulgarian saint King(Tsar) Boris I reached the Rus in the late 10th century, likely during the reign of Boris II of Bulgaria (969-977), great-grandson of Boris I. In 967 the Byzantines instigated the Rus to attack the First Bulgarian Empire and it is probably around this campaign that Vladimir I of Kiev marriage to a Bulgarian noble, who is assumed to be a daughter of Peter I, i.e. sister of Boris II was arranged.[7][8]One of the sons of Vladimir I was given the name Boris. As evidenced by the Rus' Primary Chronicle, Boris and Gleb were sons of Vladimir I, born to him by the Bulgarian princes.

The name Boris is not of Turkic origin. It is of Bulgar origin, often called proto-Bulgarians. The origin of Bulgars themselves is still debatable among historians. One of the theories is that they are, indeed, partly Turkic, but that should not be considered a solid fact, thus it should be labeled as a Bulgar name.
The origin of the name stems from the spread of toteism, the belief that every clan is a descendant of a specific animal.
In addition, the name does not mean "short" or "wolf". The meaning of the name has been proven to be from the old bulgar word "bars" ( барс ), which means "snow leopard".

Since 'Borislav' means 'famous victory' or 'famous battle', then 'Boris' has to do with 'victory or battle, not 'short' or 'wolf' as this website advises. 'Slav' is short for 'slava' or 'glory'.

It is noted, in the Swedish National Encyclopedia and elsewhere that it's a shortening of Borislav and that should be noted down in the etymology.

Boris is also nickname of Slavic name Borislav, which means "one who fights for glory" from бор bor, battle combined with слав slav, glory.

---

Boris can be nickname of Slavic name Borimir, which means "one who fights for peace of the world" from бор bor, battle combined with мир mir, peace.

Purely, completely Bulgarian name. The first Boris ever known in history is the Bulgarian ruler Boris I Mihail!

According to other sources the name "Boris" is of Turko-Altaen origin and would have meant "tiger". The name 'Borislav' is a derivative of the initial name (adding the suffix "-slav", which means glory, is common for slavic names).
There were 3 Bulgarian kings with the name Boris. The last Bulgarian king was Boris III, who contributed in saving the Bulgarian Jewish population during World War II.

Boris is a Bulgarian name. The first known Boris in history is the Bulgarian king Boris I. Boris, the son of Vladimir, the Russian prince, got his name from the Bulgarian Boris in honor of the christianization of Kievan Rus. Kievan Rus accepted Orthodox Christianity through the Bulgarians.