There are many symbols that have been used over time to depict various meanings in Wicca. I have chosen to display only the most popular ones at this time, and may add more at a later date.
The feminine deity of Wicca or the Mother Goddess symbol of the Lady.
This symbol is used to represent the wheel of the year used to mark sabbats, ( holidays) in the Wicca ritual calendar.
The Pentacle below is but the most popular or well known symbol of all, as it represents all of the elements. Each point represents: air, fire, water, earth and spirit.
Below is the Triple Goddess Symbol. It represents all three aspects of the Moon- waxing, Full, and waning, as well as the feminine polarity of the universe. It also represents the 3 stages of womankind- Maiden, Mother, and Crone.
Below is another way of configuring the same as above. It is called the Triple crescent.
You can find more Wicca symbols available in many books and resources.