Cognomen Lydecker (Lydecker 
) , across the world, is a rare surname. The family name Lydecker is characteristic of Sweden, where it is a rare surname, Ireland, and the United States, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in the United States, Sweden, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Lydecker | United Kingdom, Sweden, United States, Ireland, Australia |
|
charles edward lydecker National Security League, US (b. 1851) |
|
| howard lydecker US (b. 1911) |
|
|
| john kent lydecker 1949- (b. 1949) |
|
|
| janet a. lydecker researcher |
|
|
| garrett j lydecker Lydecker, Garrett J; class of 1863 |
|
|
| ken lydecker college basketball player (1971–1971) DePaul |
|
|
| henry w lydecker researcher (ORCID 0000-0002-7798-0903) |
|