The Welsh National Book of Remembrance for the First World War contains the names of 35,000 servicemen and women, as well as members of Welsh Regiments, who lost their lives in the First World War. These individuals are listed according to regiment and battalion alongside the names of those who might well have died alongside them.

Sixth Battalion; Seventh Battalion; First Battalion; Second Battalion; Fourth Battalion; First Fifth Battalion; Second Fifth Battalion; Fifth (Reserve) Battalion; First Sixth Battalion; Second Sixth Battalion; First Seventh Battalion; Second Seventh Battalion; First Eighth Battalion; Second Eighth Battalion; Ninth Battalion; Tenth Battalion; Eleventh Battalion; Fourteenth Battalion; Fifteenth Battalion; Sixteenth Battalion