Dovid Feinstein (Hebrew: דוד פיינשטיין; 1929 – November 6, 2020) was an American rabbi and halachic authority.
He also wrote a number of books on such topics as halacha, Torah and the Jewish calendar, as well as some very popular Passover Haggadahs.
His brother, Rabbi Reuven Feinstein, is rosh yeshiva of the Staten Island branch of Mesivtha Tifereth Jerusalem.
[3] He was known for following the directive of the mishnah in Avos 1:15 "אמור מעט ועשה הרבה - Speak less and do more".
A full biography simply titled "Reb Dovid"[4] was published by Artscroll.