常 is a moderately uncommon Chinese surname (also meaning 'often, constant').
熙 ('bright, splendid, prosperous') is a high-register given-name character — it appears in the imperial reign title
康熙 (Kangxi, 1662–1722,
清圣祖) and in the Tang-era reign title
开元盛世's variant readings. Parents who pick
熙 are usually wishing their child a bright and prosperous life.