| Official Name: | Long Beach, Maryland |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Maryland |
| Pushpin Label: | Long Beach |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Maryland |
| Subdivision Type2: | County |
| Subdivision Name2: | Calvert |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 4.38 |
| Area Land Km2: | 4.33 |
| Area Water Km2: | 0.05 |
| Area Total Sq Mi: | 1.69 |
| Area Land Sq Mi: | 1.67 |
| Area Water Sq Mi: | 0.02 |
| Population As Of: | 2020 |
| Population Total: | 1739 |
| Population Density Km2: | 402.01 |
| Population Density Sq Mi: | 1041.32 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 33 |
| Coordinates: | 38.4608°N -76.4689°W |
| Area Code: | 410, 443, & 667 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 590694 |
Long Beach is a census-designated place and unincorporated community in Calvert County, Maryland, United States. Its population was 1,821 as of the 2010 census.[2] Prior to 2010, the community was part of the Calvert Beach-Long Beach CDP.