Celebrity Bikini Bods of 2018

The One Tree Hill alum said goodbye to 2018 with an oceanside adventure in Mexico. "Giving 2018 the annual sunny sendoff in Cabo ☀️ looking back on one of the most unforgettable years of my life and so ready to see what 2019 brings!" she captioned a shot of herself looking over the water while wearing a sporty, striped two-piece on Dec. 31.

The mom of three looked pretty as a peach while enjoying a beachside vacation to close out 2018. "Cheers b**ches (New Year's resolution to be more social and less hermity)," she wrote on Dec. 31.

Considering she's posing in a bikini in the snow, we can't help but agree with Jenner's sentiment when she captioned this vacay post on Dec. 29: "f**k it’s cold." While Khloe Kardashian gushed over Kendall's racy photos in the comments, Kourtney Kardashian took it to the next level by imitating her kid sister, which you can see here.

The I Feel Pretty actress flaunted her svelte physique in a revealing white bikini, simply captioning the Dec. 8 snap, "Weekend Dreamz." 

The 28-year-old model went through quite a few bathing suits for an Aerie photo shoot on Nov. 27, including this burgundy bandeau-and-bikini-cut combo, which she looks very happy to have slipped into! 

Hitting the beach definitely doesn't "hurt like hell"! The 19-year-old pop singer had a grand ol' time taking a dip in the water in Miami Beach, Florida, on Nov. 21. She slipped into a light pink leopard print bikini that was so tiny she nearly had a wardrobe malfunction!

Taking a break from filming Godzilla vs. Kong in Hawaii on Nov. 18, the Baby Driver star splashed in the waves off Honolulu in a simple silver two-piece that gave a peek at the small tattoo along her bikini line.

The Victoria's Secret Angel covered her Faithfull The Brand red-and-white striped bikini up slightly with a white hoodie as she took in a beachside sunset on Nov. 17.

The Sopranos alum showed off her fit figure in a white two-piece while meeting the famed pigs on the beach at the Grand Isle Resort & Spa in Great Exuma, The Bahamas, alongside her bestie, Lance Bass, on Nov. 13.

The 30-year-old model looked uber confident as she posed in a striped bikini during a photo shoot in Malibu, California, on Nov. 6.

Rolling in the deep... sand, that is! The Keeping Up With the Kardashians star had no problem getting a little dirty during an impromptu beach photoshoot while on vacation in Soori, Bali.

The model posed on a yacht in a leopard-print bikini in front of the Sydney Opera House in Australia. "I love the Opera," she captioned the Instagram photo.

The 39-year-old Keeping Up With the Kardashians star flaunted her incredibly fit figure while rocking a tiny black bikini in a few sunny, summer-vibe snapshots she shared to Instagram on Oct. 16. The reality star and mother of three captioned the fun, flirty photos with a simple heart emoji.

Vegas vacation! The Bachelor alums Amanda Stanton and Lauren Bushnell showed off their summer bodies while relaxing at Encore Beach Club at Wynn Las Vegas in early September.

The 31-year-old reality star and mother of three celebrated a lazy Sunday afternoon by flaunting her flawless figure in a tiny, black two-piece as she strolled through a shaded, lush garden and posted a pic to Instagram on Sept. 9. Cavallari captioned the skin-baring snapshot simply, "Sundayzzzzz."

The Dog Days actress flaunted her fit physique while taking advantage of the summer season by enjoying a day at the beach. Dobrev shared a sunny snapshot of her beach trip to Instagram, sans caption, on Aug. 27.

The 46-year-old reality star turned bodybuilder rocked a plunging white one-piece while visiting Le Blanc Spa Resort Los Cabos in Mexico with her BFF, Rosana.

Sporty and sexy! The mom of three showed fans what her "detox" looked like as she floated in an indoor pool on Aug. 13.

What a birthday view! McKinney celebrated turning 25 with a vacation in Capri, where she kept sun smart in a straw hat and a floral bikini on Aug. 10. 

The 29-year-old Victoria’s Secret model flaunted her figure in a series of Instagram photos on Monday, less than a month after welcoming her second child. The mother of two, who recently clapped back at social media bullies for criticizing her post-baby body, showed off her frame in a checkered one-piece swimsuit  along with a topless photo captioned "Forever Mood."

The Brazilian Victoria's Secret model flaunted her fit physique in a revealing, dark brown fishnet-style bikini while splashing around in the idyllic waters off the coast of Ibiza, Spain, on July 8.

All black everything! Rita Ora rocked a tiny black bikini, matching shades and a leather Prada belt bag while vacationing with family and friends in the French Riviera on July 2. 

Proud Canadian! WAGS star and model, Nicole Williams, celebrated Canada Day by posting a sizzling beach pic on Instagram on July 1. The 30-year-old model showed off her toned frame in a skimpy red bikini while dipping her toes in the ocean water. 

Buongiorno! Kourtney Kardashian rocked a tiny Girls On Swim bikini while posing on a boat railing in Italy with her friend, Simon Huck, on June 29. The 39-year-old reality star is enjoying a European vacay along with her boyfriend, Younes Bendjima, and her three children, Mason, Penelope and Reign. 

The actress couldn't have looked more cute or carefree while flaunting her toned bod on vacation. "How I De-Stress   by @mrsmiawright #WadeWorldTour2018 #Espana??," she captioned a series of snaps on Instagram on June 26. 

The former Hills star put her post-baby body on display in a skimpy red bikini while vacationing in Italy with her hubby, Tim Rosenman, on June 19. The couple welcomed their first child together, Sonny Sanford, last July. 

The Claws star soaked up the sun while celebrating her 30th birthday at Live Aqua Beach Resort in Cancun, Mexico, on June 27.

The "Piece of Me" singer enjoyed a fun family vacation in Florida on June 6, sharing this sweet pic of herself and 12-year-old son Preston flashing big smiles as they relaxed on the beach. "Me and Pres having a chill day at our favorite spot in Miami! ??????☘️???????," she wrote on Instagram.

"Cute but she’ll rip your face off," the 22-year-old model captioned this sunny bikini-and-puppy pic posted to Instagram on May 28.

While on vacation in St. Barts with boyfriend Scott Disick, to celebrate his birthday, the 19-year-old model -- and daughter of Lionel Richie -- shared a number of sultry snapshots to Instagram on May 28, showing off her fit physique while splashing around in the idyllic locale's crystal clear waters.

The Victoria's Secret Angel basked in the sun in a sporty red two-piece at her hotel in Cannes, France, on May 16, where she was spending time at the 71st Annual Cannes Film Festival.

Shortly after finding out their CW show, Life Sentence, had been canceled, Hale and boyfriend Riley Smith (not pictured) hit the beach in Wailea, Hawaii, on May 10. The actress sported a sporty black-and-white two-piece covered in red dots during the outing, which also showed off her right rib tattoo.

"Beaching with my bestie ??," the "Boyfriend" singer wrote of paddleboarding with her friend, Stephenie Pearson, in the Bahamas on May 7.

The statuesque model sported a tiny checkered thong bikini to enjoy a pool day in Miami, Florida, with pal Hailey Baldwin (not pictured) on April 30.

The 33-year-old actress shielded her eyes from the sun as she laid out poolside in Palm Springs, California, in a dusty blue Cynthia Rowley bikini. "Sorry Keith Urban, blue is my color. ?," she wrote on Instagram on April 29.

The "Dip It Low" singer donned a strappy black bikini for the third day of the 2018 Coachella festival on April 15.

The Midnight Sun star took to Instagram on April 14 to share a steamy snapshot of herself enjoying a dip in a shallow pool while rocking a tiny yellow bikini, which she captioned, "Day bathing."

The model-actress wasn't afraid to show a little skin in a sexy all-black poolside ensemble -- which included a high-waisted two-piece, sheer duster, strappy cut-out heeled sandals and an acrylic Cult Gaia bag -- while attending the Sports Illustrated new Swimsuit Issue and model search winners celebration at the Encore Beach Club in Wynn Las Vegas on March 24.

The "Wolves" singer went Down Under on March 19, traveling to Australia for some relaxation time. Gomez was spotted aboard a luxury yacht with some pals in the Sydney Harbor while rocking an orange bikini top with black bottoms.

The Good Place star showed off her super-fit physique during her beach vacation in Turks & Caicos. Bell posed in a vintage-style two-piece and enjoyed the setting sun in a snapshot she shared to Instagram on Feb. 3. "Doing my best imitation of @the_salty_blonde and feeling VERY self-conscious despite the confident pose," she captioned the idyllic snapshot. "Such is the nature of a beach photo."

The Vampire Diaries alum soaked in the sun on Jan. 14, sharing this tropical-looking snap to Instagram with the caption, "Namaste in the cold. This beach doesn’t believe in winter."

The "Starving" singer paired a Santa hat with her sporty red bikini, wishing fans a "very merry Christmas" from a tropical vacation on Dec. 26, 2017.

Now we're definitely dreaming of warmer temps! The 30-year-old model steamed up a beach in the Bahamas, posing for a photo shoot in a tropical bandeau top and black bottoms on Jan. 9. Can you believe she welcomed her first child just six months ago?