The name Jeffrey is very common in English-speaking countries.
Tips
usage
杰佛 rarely appears alone — it's the leading syllables of a longer transliterated name. Most often you'll see 杰佛逊 (Jefferson) or 杰佛瑞 (Jeffrey). The mainland standard for 'Jefferson' is 杰斐逊; 杰佛逊 is the older / Taiwan-style rendering.
