横滨中华街（日语：横浜中華街／よこはまちゅうかがい Yokohama Chūkagai ）是位于日本神奈川县横滨市中区山下町一带、1859年至今具有超过160年历史的华人居住区，属于俗称的“唐人街”。居住在这里的约三、四千华侨中，以祖籍为中国广东人的为主。1955年之前，这里又名唐人町或南京町。横滨中华街是日本乃至亚洲最大的唐人街，与神户南京町、长崎新地中华街一起并称为日本的三大中华街。在横滨中华街，仅中国餐馆就有200多家。
1859年横滨港开港之时，横滨市建成了外国人居留地（类似于租界的形式），一些服务于欧美商社及银行的中国人与欧美人一起往来于中日之间。当横滨与上海、香港之间开设了定期的船路航班之后，一些中国贸易商也开始往来中日之间，并在居留地的山下町周围建造了关帝庙、中华会馆、中华学校等。这些是横滨中华街最初的发展。
在条约改正之后，居留地在1899年被废止。尽管中国人可从事的职业受到限制，不过此后可以住到居留地外的地区，中华街因而得到了进一步的发展。但1923年发生了关东大地震，中华街遭受了重创，很多中国人因而被迫返回了中国。虽然之后有短暂恢复，但却因为1937年日本侵华战争的全面爆发，在日本的华人也被强烈压迫，唐人街因而进入了停滞期。在二战后的复兴期里横滨港繁盛了起来，而与香港之间的往来也复活了。1955年时，中华街主要街道的入口建立了善邻门，揭幕时在善邻门的牌楼上有着此街道的正式名称“中华街”以及“亲仁善邻”这四个字。许多日本人也来到此地，因而中华街发展成了观光地区。
在2004年2月1日横滨高速铁道港未来线开始营运，元町·中华街站被设为终点站。由于车站的名称加入了“中华街”这个名字，加上东急电铁东横线与港未来21线相互直通运转，因此，从东京涩谷站搭乘东急东横线，只需约1个小时即可直达，令中华街的交通便利性与知名度都获得了大幅度的提升。这里年均游客达1800万人次，成功增加了旅游收入，创造了就业机会。在中华街，有343家华人商店和197家日本人商店，散发着独特的魅力，成为旅游名地，直接经济效益达到500亿日元。
2006年3月17日，横滨妈祖庙在开港150周年纪念的横滨开庙。由位于福建莆田市湄洲岛的祖庙湄洲天后宫分灵。妈祖在140年前，曾经记载被清朝领事馆与横滨关帝庙祭祀，在横滨中华街自古就得到深厚的信仰。
Yokohama Chinatown is a Chinese residential area located in Yamashita Town, Naka-ku, Yokohama City, Kanagawa Prefecture, Japan, with a history of more than 160 years from 1859 to the present. It is commonly known as “Chinatown”. Among the approximately three to four thousand overseas Chinese living here, the majority are from Guangdong, China. Before 1955, it was also known as Tangren Town or Nanjing Town. Yokohama Chinatown is the largest Chinatown in Japan and even Asia. Together with Kobe Nankinmachi and Nagasaki Shinchi Chinatown, it is also known as the three major Chinatowns in Japan. In Yokohama Chinatown, there are more than 200 Chinese restaurants alone.
When the Port of Yokohama opened in 1859, a foreign residence was established in Yokohama City, and some Chinese who served European and American trading companies and banks traveled between China and Japan together with Europeans and Americans. After regular ship flights were opened between Yokohama, Shanghai and Hong Kong, some Chinese traders also began to travel between China and Japan, and built Kanti Temple, Chunghwa Hall, Chunghwa School, etc. around the Yamashita town of their residence. These were the first developments of Yokohama Chinatown.
In 1955, a Good Neighbor Gate was built at the entrance of the main street of China Street. When it was unveiled, the street’s official name “China Street” and the four words “Friendly and Kind Neighbors” were written on the archway of the Good Neighbor Gate. Many Japanese also came here, so Chinatown developed into a tourist area.