Leib is a given name, and (less often) a surname usually of Jewish origin.^[1] Leib often stems from לייב (leib), the Yiddish word for Hebrew "heart" לב (lev, leb) and with the diminutives Leibel and Leibele, or from the Yiddish word for "lion". The Standard German word for lion is Löwe; other – partly dialectal – German forms of the word are Löw, Loew, Löb, Leb and Leib. In Standard German, Leib means "body", but that is in general not the source for the Yiddish name.

Given name

• Yehudah Aryeh Leib Alter (1847–1905), Polish rabbi
• Aryeh Leib ben Asher Gunzberg (c. 1695–1785), Lithuanian rabbi and author
• Aryeh Leib Dulchin (Arieh Dulzin, 1913–1989) Soviet and Israeli Zionist activist and politician
• Aryeh Leib Epstein (1708–1775), Polish rabbi
• Yaakov Yehuda Aryeh Leib Frenkel (died 1940), Hungarian rabbi
• Aryeh Leib Frumkin (1845–1916), Lithuanian rabbi
• Isaac Leib Goldberg (1860–1935), Lithuanian-Israeli Zionist leader and philanthropist
• Leib Gurwicz (1906–1982), Lithuanian-British rabbi
• Aryeh Leib HaCohen Heller (1745–1812), Polish rabbi
• Leib Kvitko (1890–1952), Soviet poet
• Leib Langfus (died 1944), Polish rabbi and Auschwitz victim
• Yehuda Leib Maimon (1875–1962), Israeli rabbi
• Aryeh Leib Malin (1906–1962), Polish-American rabbi
• Leib Milstein (Lewis Milestone, 1895–1980), Moldovan-American film director
• Aryeh Leib ben Moses Zuenz (c. 1768–1833), Polish rabbi
• Leib Ostrow (born 1951), American music producer
• Yehudah Leib Pinsker (Leon Pinsker, 1821–1891), Polish political activist and physician
• Leib Sarah's (Aryeh Leib the son of Sarah, 1730–1796), rabbi
• Aryeh Leib ben Saul (c. 1690–1755), Polish rabbi
• Aryeh Leib Schochet (1845–1928), Russian-American rabbi
• Aharon Yehuda Leib Shteinman (1913–2017), Israeli rabbi
• Zalman Leib Teitelbaum (born 1951), American rabbi
• Leib Tropper (born 1950), American rabbi
• Leib Weissberg (1893–1942), Croatian rabbi
• Leib Yaffe (died 1948), Israeli poet and journalist
• Aryeh Leib Yellin (1820–1886), Polish rabbi

Surname

• Ethan Leib (born 1975), American law professor
• Gary Leib (1955–2021), American cartoonist and animator
• Michael Leib (1760–1822), American politician