What does Trinity mean?
Trinity /trin-i-ty/ [3 sylls.] as a girls' name is of Latin origin, and the meaning of Trinity is "triad".
How popular is Trinity?
Trinity is a somewhat prominent first name for women (#2406 out of 4276, Top 56%) and also a somewhat prominent surname for both adults and children (#88461 out of 150436, Top 59%). (2000 U.S. Census)
Shown below is the birth name popularity of Trinity for girls. Trinity entered the list in 1993 and reached its apex rank of #48 in the U.S. in 2005, and is at #110 presently. (Top 1000 Birth Names Statistics, 2014)
Prominent variation forms of Trinity (#110 the previous year) are Trena and Trinidad. Forms like Treena are uncommon. Adoption of these girl names reached its most widespread in 2005 (usage of 0.3173%) and is almost as widespread today (usage 0.2967%, down 6.5%), but with the form Trinidad becoming less stylish. Trinity (#110) is the most chic girl name here. Below is a graphed comparison of the usage of Trinity and associated names. (Top 1000 Birth Names Statistics, 2014)