| WTMR | |
| City: | Camden, New Jersey |
| Country: | US |
| Area: | Philadelphia, Pennsylvania |
| Branding: | WTMR AM Radio 800 |
| Frequency: | 800 kHz |
| Format: | Brokered and religious programming |
| Class: | B |
| Facility Id: | 24658 |
| Licensing Authority: | FCC |
| Callsign Meaning: | Thomas R. Roberts, owner of the station from 1968 on; backronymed slogan, "Where the Master Reigns" |
| Former Callsigns: | WKDN (1948–1968) |
| Owner: | Beasley Broadcast Group, Inc. |
| Licensee: | Beasley Media Group Licenses, LLC |
| Sister Stations: | WBEN-FM, WMGK, WMMR, WPEN, WTEL, WWDB, WXTU |
WTMR (800 AM) is a radio station broadcasting brokered programming, mainly religious programming. Licensed to Camden, New Jersey, United States, it serves the Philadelphia area. WTMR is owned by Beasley Broadcast Group, Inc., through licensee Beasley Media Group, LLC, and features programming from Westwood One. The transmitter site is in Camden, while studios and offices are located in the "555 Building" in Bala Cynwyd, Pennsylvania.
The station began operations November 1, 1948, as WKDN. It was originally owned by Ranulf Compton, and was a 1,000-watt, daytime-only station that broadcast middle-of-the-road music. The call letters became WTMR after the station was sold in 1968. By the early 1970s, WTMR's power had been increased to 5,000 watts. In 1975, the station began phasing out pop music in favor of religious programming. It was granted a license to operate at night during the 1980s.