How do you say "ring boy" in Mandarin chinese?

Question

Ring boy as in that little boy who carries the ring in weddings.

Answer 1

ring boy

戒指童jiè zhi tóng

戒指童由年龄在4-8岁间的男孩担任，身穿礼服，用绸缎垫子托着戒指送往仪式台。...

戒指童和花童的礼服应该尽量跟伴娘的礼服风格相协调，但是尽量避免太成熟的款式，...

Answer 2

I don't think traditional Chinese marriage ceremonies had a "ring boy," so they might have borrowed it from us. He might be called 戒指童 (jiè zhi tóng, where 戒指 is "ring" and 童 is "boy").

I'm only making an educated guess though, so I'd wait for a native speaker to really give you a definitive answer.