The name, DeeAnn (spelled as two names put together with 2 capital letters), is an English "place name" referring to the River Dee in England, put together with a name that comes from the Hebrew, "Hannah" meaning "grace."DeeAnn = River of Grace.
In 2018, 47 is the most common age for an American (U.S.) Deeann who is registered female with the Social Security Administration. It is the 4, 494th most common female first name for living U.S. citizens.
This name is plain English, but it is very soft and feminine. It actually sounds more French, in my opinion. A friend of mine has this as a middle name, it's a combination of her grandmother and grandfathers' middle names, which is pretty cool.