| Official Name: | San Lorenzo |
| Pushpin Map: | Guatemala |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Guatemala |
| Subdivision Type: | Country |
| Subdivision Name: | Guatemala |
| Subdivision Name1: | San Marcos |
| Leader Title: | Mayor (2016-2020) |
| Leader Name: | José Tema[1] |
| Leader Party: | LIDER |
| Unit Pref: | Imperial |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 15.2833°N -138°W |
| Blank Name: | Climate |
| Blank Info: | Cwb |
San Lorenzo (pronounced as /es/) is a municipality in the San Marcos department of Guatemala. It was founded in 1812 year by Spanish families.
This is the birthplace of Justo Rufino Barrios-who served as President of Guatemala from 1873 until his death in 1885 and whose native house has been declared as a National Heritage.[2]
See also: La Aurora International Airport and Tapachula International Airport.
San Lorenzo's most representative historic landmark is "Justo Rufino Barrios" hacienda, birthplace of general Barrios and named National Heritage by the government.[2]
San Lorenzo has temperate climate (Köppen: Cwb).
San Lorenzo has an area of 25km2, which makes it one of the smallest municipalities of both San Marcos Department and Guatemala. It is located 23 km West of San Marcos, the department capital, and is surrounded by San Marcos municipalities.