Sedlock is a surname that is pronounced /ˈsɛdlɒk/. In this word, the first syllable is pronounced as "sed" like the past tense of the verb "to sit". The second syllable is pronounced as "lock" like the metal device used to secure something. The letter "o" is pronounced as "ɒ" which is similar to the "o" sound in "hot". The "e" in the first syllable is pronounced as "ɛ" which is similar to the "e" sound in "get". Therefore, the correct spelling of this name is Sedlock.