- Bayou - A pony given to her by Naveen's parents.
- Lily - A cat found by outside of Tiana's Restaurant.
- Birdadette - A bird.
- Olive - A pug puppy adopted by Tiana.
Tiana is an intelligent, resourceful, and highly talented young woman. However, at the start of the film, and mostly throughout, she can be overly uptight and far too absorbed in work ethics to focus on relaxing, family, and friends. Though she notices this and appears to have some regret over her busy schedule, her obsession with bringing her dream of opening her own restaurant into fruition overshadows it all. She also, for the most part, has appeared to accept that over the years, as seen when she and Eudora visited the old sugar mill in preparation of its purchase.
With a strong sense of honor and integrity, Tiana firmly believes nothing deserves to be obtained in the world unless it's done through hard work. A view she's brought up when dealing with her excessively dreamy and immature best friend, Charlotte La Bouff, as well as the party-loving Naveen.
Aside from her workaholic nature, Tiana has another side to her; one that's passionate, imaginative, and ambitious. She enjoys humor, music, quality time with loved ones, and dancing (though not at first). She becomes excitable whenever mentioning her restaurant, lighting up when she does, as Naveen puts it, and although she initially had very little knowledge over romance, she values it highly once she starts to fall for Naveen, to the point where her restaurant was no longer the most important part of her life.
She's also incredibly strong-willed, and doesn't take lightly to being undermined or insulted by anyone. Despite her poor background, she sees something far greater in herself and jumps at every opportunity available to prove so, whether it be to the sleazy Fenner Brothers or the originally arrogant Prince Naveen, who initially looked down upon the woman because of her occupation as a waitress and uptight attitude, only to be proven there's far more to her than meets the eye.
From early in the film, it is revealed that Tiana is a natural expert in the culinary arts. She is able to dice and chop a variety of vegetables at incredible speeds and cook a delicious meal out of very little. She can recognize the ingredients needed for the dish, and Tiana was even able to transform Mama Odie's nauseous soup to perfection. The fact that Tiana baked five hundred beignets for Charlotte's masquerade ball that was the next day means Tiana is a competent enough cook. Tiana's gift has been pointed out on several occasions, by her father, and by Naveen.
From working as a waitress, Tiana has excellent balance and hand/eye coordination. She could balance four trays of food on her head, hands, and right foot that were tossed one after the other before balancing three trays on her head and hands.
Tiana has intelligence, too, because she built a raft when it doesn't appear she was taught how to build one. She was smart enough to flick her tongue out to grab Dr. Facilier's talisman to break it. Tiana is the only princess with a real job, and considering she didn't go to college, has knowledge of economy to run her business, even though people underestimated her.
Tiana showcased her relatively quick adaptability as a frog; she could hop fast enough to get away from Stella considering she became a frog not long before that. Tiana avoided getting eaten by a crane, one of the natural predators of frogs. When a group of alligators tried to eat her and Naveen, Tiana swam away without being caught and, unlike Naveen, found a hiding spot. Furthermore, Tiana had enough physical strength as a frog to escape from a hunter's grasp by bending back his fingers with her feet.
Tiana's iconic lily pad outfit is a green sparkling strapless sleeveless ball gown. The gown's petticoat is a light yellow color. Along with the gown, Tiana wears light green opera gloves, green shoes to match the gown, a light blue diamond necklace with matching earrings, and a lily pad tiara to top it all off. With this outfit, Tiana's hair is pinned up in an updo bun.