The two crossword solutions for the term 'NAME THAT MEANS 'HAPPY'' are Felix and Felicia. Felix is a Latin name derived from the Latin word felix, meaning 'HAPPY' or 'LUCKY'. It is a popular name in many countries, including Germany, Austria, and Switzerland. Felicia is a feminine form of Felix, also derived from the Latin word felix. It is a popular name in many countries, including the United States, Canada, and Australia.