Is there a saint who's name is close to Thalia?
Thalia was the name of one of the Three Graces. Also the name means The One in Bloom or The Gentle Dew of Heaven. In Greek mythology she is the Muse of Comedy. Thats all I could find.
Yes there is a Saint Thalia. Don't know who she is or what she is a saint for but she is one.
I looked on the Saints A-Z list and did not find a St Thalia you can look for yourself herehttp://www.catholic.org/saints/stindex.php?lst=T