RAJOI Sayfuddin Mahmudi Isfahoni (soli tavallud nomalum — vafot 1555), shoiri fors-tojik. Rajoi ilmhoi mamuli zamonashro ba khubi azkhud karda bud. Dar tazkiraho shavqu havasi beandozaash ba hisobu handasa (matematika) qayd gardidaast. Rajoi dar darbori hukmroni davrash kotibi rasmi buda, muomiloti devoni; (kanselyari)-ro ba khubi anjom medod.
Rajoi az avlodoii Kamoluddini Ismoili Isfahoni buda, yake az shoironi marufi zamonash ba shumor meraft. Sommirzoi Safavi dar borai Rajoi chunin menavisad: «… chuy taqrirotash dar vajhi maquli va adoi kalimotash dar nihoyati shirini va maqbuli, man uro khushlahja guftaam». Dar navhoi gunoguni ; sher (qasida, gazal, ruboi va gayra) asarho ofaridaast. Dar hajvu mutoyiba mahorati kalon doshtaast. Az miqdori ashor va yo devoni Rajoi tazkiranavison hej guna ittiloe nadodaand. Ruboii zerin az ejodiyoti Rajoi ast, ki dar «Tuhfai Somi» ovarda shudaast:
On gul, ki dili ahli vaforo khun kard,
Khun kard chunon ki kas nadonad chun kard.
Sarpapja ba khuni oshiqon gulgun kard,
Chun shokhi gule, ki gunchaho berun kard.