北河街（英語：Pei Ho Street）是香港深水埗區一條街道，與鄰近的桂林街一樣，主要售賣適合成人和小孩穿著的廉價服裝、軍服及雜貨為主。這一類充滿本土風味的市集，在香港已經愈來愈少見。由於舊區租金比較低，令商販經營成本大大減輕，於是「價廉物美」成為北河街購物的一大特色，該街是深水埗的縮影。北河街由石硤尾巴域街伸延至通州街公園。即使北河街並無任何專營巴士或專綫小巴路線使用此道路，但有多個巴士站都以「北河街」為名。北河街名的由來眾說紛紜，有指是因為當地以前有一條小河涌，名叫北河，亦有說法指以越南北部城鎮北河（Bac Ha），或中國華北河流海河（又稱北河）命名。
北河街市政大廈（英文：Pei Ho Street Municipal Services Building）是香港九龍深水埗區深水埗的一座多用途市政大樓，位於北河街、大南街、桂林街、基隆街之間（基隆街333號），設有街市、政府辦公室及體育館等設施，於1995年落成啟用。大樓由周林建築師事務所設計，保華德祥營造有限公司承建。北河街市政大廈前身是舊深水埗街市（當時街道編號為北河街99號），內有兩座獨立建築物，1990年代初拆卸重建；至於該地是否就是由1910年代建築業殷商李炳（李瑞琴）捐地興建的深水埗街市，則有待考究。
在五十年代的香港，醫院產床數量不足，提供專人接生服務的留產所應運而生,至八十年代，醫院足以應付產科需求，留產所的歷史任務才正式完結。標題圖片左上角二樓是北河街的一間, 汝洲街廟的對面也有。舊日風氣保守，產科醫生多數係男醫生，婦女唔願意畀男人接生，所以亦會去留產所。現今多數都醫院生，留產所亦息微。一九八八年三月卅一號，香港最後一間私家留產所執笠。
Pei Ho Street is a street in Sham Shui Po, Hong Kong. Like its neighbor Guilin Street, it mainly sells cheap clothing, military uniforms and groceries suitable for adults and children. Such markets full of local flavor are becoming increasingly rare in Hong Kong. Due to the relatively low rents in the old district, the operating costs of vendors have been greatly reduced, so "cheap and good quality" has become a major feature of shopping in North River Street, which is the epitome of Sham Shui Po. North River Street extends from Yuen Street in Shek Kip Mei to Tong Chow Street Park. Even though there are no dedicated bus or minibus routes using this road in North River Street, there are a number of bus stops named after "North River Street". The origin of the name of Beihe Street is controversial, some say it is because there used to be a small river in the area named Beihe, and others say it was named after Bac Ha, a town in northern Vietnam, or Haihe (also known as Beihe), a river in North China.
Pei Ho Street Municipal Services Building is a multi-purpose municipal building in Sham Shui Po, Sham Shui Po, Kowloon, Hong Kong. The building was designed by Zhou Lin Architects and constructed by Baohua Dexiang Construction Co., Ltd. The North River Street Municipal Building was formerly the old Sham Shui Po Market (then street code was 99 North River Street), containing two separate buildings, which were demolished and rebuilt in the early 1990s.
In Hong Kong in the 1950s, the number of maternity beds in hospitals was insufficient, so maternity centers providing dedicated delivery services came into being. The second floor in the upper left corner of the title image is one on Beihe Street, opposite the Ruzhou Street Temple. In the old days, the atmosphere was conservative, and obstetricians were mostly male doctors. Women were unwilling to let men deliver babies, so they would also go to maternity centers. Nowadays, most people give birth in hospitals, and maternity centers are also very low. On March 31, 1988, the last private maternity center in Hong Kong closed down.