杰弗瑞 is one of two common renderings of Jeffrey/Geoffrey - the other being 杰弗里 (also valid). 杰 means 'outstanding', a flattering pick that opens many male English-name transliterations (杰克 Jack, 杰瑞 Jerry, 杰逊 Jason).
In Pop Culture
杰弗里·乔叟Jiéfúlǐ Qiáosǒu
Geoffrey Chaucer
The 14th-century English poet of The Canterbury Tales - Chinese-language editions also use 杰弗瑞 in some translations.
