I'm describing a girl..

[esrever88]

These came to mind:

Bianca
Eleni
Ivy
Renata
Zoe

[nay_han]

Some names that come to mind-
Georgia/Georgina
Clara
Petra
Minerva
Alessandra

[claireelise]

1. Elena/Elaina
2. Ariel
3. Julie/Julia
4. Elisabeth nn Lissy
5. Caroline nn Caro

[bethlow]

Jada
Gina
Marina
Elyssa
Athena
Gia
Helena
Callista

These popped in to my head, whilst reading through the description.

Hope this helps,
Bethan.

[jaderain]

How 'bout...
Hali
Natalie
Sabrina
Jade

Congrats and good luck!

[pepperingram]

Ariana/Eliana
Alyssa
Allegra
Thalia
Nora

[east93]

M names come to mind:
Melanie
Marina
Marsella
Marisol

Or D names:
Daniela
Danica
Dahlia!
Delia!

[lori johnson]

... She is petite, thin (not skinny), and short (5'0-5'5).
She is health conscious and fit.
She has dark brown hair (almost black) and very fair olive skin.
She comes from a primarily Greek and Italian hertitage.
She is sporty (plays a lot of sports or activities)
She is passive in large group settings, perhaps too passive, almost invisible (doesn't talk much).
But once you get to know her you will find she is very dominant in smaller group/intimate settings.
She is really good at math.
She has a big heart.
She is sometimes a little insecure. ...

Upon reviewing the one-, two- and three-syllable Greek and Italian names on Babynames.com, I feel that the Greek/Greek duo Phoebe Catherine best fits the name image you've described: a melancholic [introverted] temperament type and physical appearance, with phlegmatic [introverted] and choleric [extroverted] influences of mathematical and athletic giftings [respectively].


Most Italian names are too "feminissima" [Nameberry term for "the sweetest of the sweet, the most feminine of the feminine names"] in my opinion to reflect mathematical and athletic giftings in addition to the melancholic temperament type and physical appearance Italian names personify best.

Here's an exception ...

01. Gemma


Most Greek names, on the other hand, have just what we're looking for. I call them "energetic introverted" names.

Examples [in addition to Phoebe, which is still my favorite for you] ...

01. Callista
02. Daphne
03. Kyra
04. Demetra
05. Lydia
06. Philipa
07. Sophia


Sources: Babynames.com, http://en.wikipedia.org/wiki/Four_temperaments [and] "Beyond Jennifer & Jason" book [1994] by Linda Rosenkrantz and Pamela Redmond Satran