Lù Yǒurén 陸友仁 / Lù Yǒu 陸友 (fl. Yuántǒng / Zhìyuán 1333–1338, died young), zì Fǔzhī 輔之, hào Yánběi shēng 研北生; native of Sūzhōu (Píngjiāng). Yuán-period bibliophile, art-historian, jīnshí-and-ink scholar, and bǐjì author. A central figure of the late-Yuán Sūzhōu literati circle around Kē Jiǔsī 柯九思 and Wú Quánjié 吳權節. Author of the Mò shǐ 墨史 (KR3j0034) — the principal Yuán-period treatise on Chinese ink and ink-making; the Yánběi zázhì 研北雜志 — a major bibliographic-and-art-historical bǐjì; the Wúzhōng jiùshì 吳中舊事 (KR2k0122) — a topographical bǐjì on Sūzhōu; and various other works. CBDB id 108389; the entry under id 108365 (Lù Yǒu) is the same person under his shorter name.