Biàn-mǎn 遍滿 was a Táng-period Chinese Buddhist monk associated with the Esoteric (密教) tradition descended from Amoghavajra 不空, of otherwise unattested dates. He is known only as the author of the Jīn-gāng dǐng pútí-xīn lùn lüè-jì 金剛頂菩提心論略記 (KR6o0071), a brief commentary on Amoghavajra’s foundational Pútí-xīn lùn (T1665, KR6o0070). The colophon “唐沙門遍滿撰” identifies him only by shamen 沙門 (śramaṇa) and Tang-dynasty placement; he is not attested in the Sòng gāosēng zhuàn 宋高僧傳 or the Jǐng-dé chuán-dēng lù 景德傳燈錄. Internal evidence places him in the late Tang Esoteric tradition, perhaps the late eighth or ninth century; his work survives only through Japanese manuscript transmission preserved in the Manji-zokuzōkyō 卍續藏經.