R. Abraham b. Samuel Alkalai (1750?–1811), rabbi and codifier, Alkalai, was apparently born in Salonika, studied under his uncle R. Reuben b. Jacob, whose novellae he sometimes quotes in his works. He served as rabbi of Dupnitsa, where he also headed a yeshivah (1781). He visited Salonika in 1798, and Adrianople on his way to Constantinople (1802), as emissary of his community, which was suffering great hardships. Later he settled in Safed. He also wrote responsa, Hesed le-Avraham (2 vols., 1813–14). A manuscript volume of his sermons is in the Jewish Theological Seminary library in New York (no. 9425).

עם הסכמת רבני שאלוניקי: ר' יוסף ן' יעיש, ר' אברהם ב"ר בינבינישטי גאטינייו ור' חיים יוסף הכהן ן' ארדוט, שבט תקנ"ח.