喇沙小學（英文：La Salle Primary School）是香港一所位於九龍仔喇沙利道擁有名望的全日制男子小學，是天主教喇沙會在香港開辦的第三所學校及第一所小學；以學生人數計算，亦是全香港最大的小學。因直屬關係，大部份畢業生都會升讀與其一路之隔的喇沙書院。
La Salle Primary School is a prestigious full-day boys' primary school in Hong Kong located on La Salle Road, Kowloon, and is the third and first primary school run by the Catholic La Salle Society in Hong Kong, and the largest primary school in Hong Kong in terms of number of students. Due to their direct affiliation, most of the graduates will go on to La Salle College, which is across the road from them.