I'm a Celebrity...Get Me Out of Here! returned for its 23rd series on 19 November 2023 on ITV.^[1] The series was filmed in Murwillumbah, New South Wales, with Ant & Dec returning to present the series.

On 10 December 2023, Sam Thompson was declared the winner of the series, and ultimately the new "King of the Jungle", with Tony Bellew and Nigel Farage finishing in second and third place respectively.^[2]

Following the conclusion of the twenty-second series, ITV confirmed an "All-Stars" series I'm a Celebrity...South Africa featuring previous contestants, which aired earlier in 2023 and was won by Myleene Klass.^[3][4] The first trailer for the twenty-third series aired in October 2023, which featured a ten-second clip of presenters Ant & Dec working at a luxury "Jungle Retreat" and with an added voiceover speaking the words "Come away with us [to the Jungle Retreat]".^[5]

A further extended trailer was released a week later, teasing the series as a peaceful and relaxing setting fit for a celebrity with Ant & Dec undertaking jobs such as pouring mealworms into a bath.^[6][7] It also included a voiceover describing the eating trials as "exotic cuisine" and enticing celebrities to join the "ultimate jungle experience".^[8] The trailer also features a five-star "Jungle Retreat" sign as well as an aerial view of the beach overseeing Ant & Dec writing the words "Get Me Out of He[re]" in the sand.^[9][10][11]

The original line-up was announced by ITV on 13 November 2023.^[12][13] On 22 November 2023, Frankie Dettori and Tony Bellew were confirmed as this year's late arrivals.^[14][15] Grace Dent and Jamie Lynn Spears both withdrew from the series due to "medical grounds" on 27 and 29 November respectively.^[16][17]

The series had the second all male final in the show’s history, the first being the fourth series in 2004.^[18]

  Indicates that the celebrity received the most votes from the public, and was crowned the winner

  Indicates that the celebrity received the 2nd most votes from the public, and was the runner up

  Indicates that the celebrity received the most votes from the public

  Indicates that the celebrity received the fewest votes and was eliminated immediately (no bottom two)

  Indicates that the celebrity was named as being in the bottom two

• ^Note 1: The public voted for who they wanted to win, rather than save.

The contestants take part in daily trials to earn food. These trials aim to test both physical and mental abilities. The winner is usually determined by the number of stars collected during the trial, with each star representing a meal earned by the winning contestant for their fellow campmates.^[19]

  The public voted for who they wanted to face the trial

  The contestants decided who would face the trial

  The trial was compulsory and neither the public nor celebrities decided who took part

Trial number	Air date	Name of trial	Celebrity participation	Winners/ Number of stars	Notes
1	19 November	Pole Position	Danielle Fred Grace Sam		—
2		Temple of Doom	Jamie Lynn Marvin Nick
3	20 November	Jungle Pizzeria	Nella Nigel
4	21 November	No Time To Cry	Nella
5	22 November	Climb of Cruelty	Jamie Lynn		1
6	23 November	The Scarena: Locker Shocker	Danielle Fred Grace Jamie Lynn Josie Marvin Nella Nick Nigel Sam	Danielle Fred Jamie Lynn Nella Sam	2
7		The Scarena: Don't Drop the Ball	Frankie Tony	Frankie	3
8	24 November	The Scarena: Touchdown of Terror	Grace Nella	Grace Nigel	4 5
			Nigel Sam
9	25 November	The Scarena: Down Your Sorrows	Nigel Tony		6
10	26 November	Fishy Business	Nella Sam		—
11	27 November	Down the Tubes	Grace Danielle Josie		7 8
12	28 November	Misery Motel	Marvin Sam Tony		9
13	28 November	Misery Motel: Dreaded Beds	Frankie Nella		9 10
14	29 November	In Too Deep	Nick Nigel		11
15	30 November	Barbaric Barbershop	Danielle Frankie Fred Josie Marvin		—
16	1 December	Grim Gutter	Nella Nick Nigel Sam Tony
17	2 December	Eaten Alive	Tony		12
18	3 December	Fright at the Museum	Nella		—
19	4 December	Celebrity Distressing Rooms	Fred
20	5 December	Fly on the Wall	Fred Marvin		13
21	6 December	Critter Mixer	Marvin Nick Tony		—
22	7 December	No Time to Cry, Cry Harder	Sam
23	8 December	Have Yourself a Grotty Little Christmas	Marvin Nigel
24	9 December	Celebrity Cyclone	Josie Nigel Sam Tony
25	10 December	Stakeout	Tony		14
26		Bushtucker Bonanza	Sam
27		Panic Pit	Nigel

• ^Note 1: Nella and Nigel were excluded from this trial on medical grounds.
• ^Note 2: Celebrities are competing against each other. The first five celebrities to complete the trial, would return to Main Camp.
• ^Note 3: Celebrities are competing head-to-head in order to "coach" the winning team, the winners of the previous trial, and go to Main Camp.
• ^Note 4: Frankie and Tony were excluded from this trial on the basis of being coaches.
• ^Note 5: The coaches chose an additional campmate to compete alongside those chosen by the public.
• ^Note 6: Danielle, Frankie, Fred, Jamie Lynn, Nella and Sam were excluded from this trial as they were in the winning Play-offs team.
• ^Note 7: Nella, Nigel and Tony were excluded from this trial on medical grounds.
• ^Note 8: As Grace was unable to participate in the trial for medical reasons, Danielle, who received the third highest number of votes, took part instead.
• ^Note 9: Instead of competing for stars, the celebrities competed for coins.
• ^Note 10: Due to already participating in the Misery Motel, Marvin, Sam and Tony were excluded from this trial.
• ^Note 11: Although eligible to be voted for the trial, at the time of the reveal, Nella was being seen by a medic and was therefore unable to take part and votes cast for her were subsequently voided.
• ^Note 12: Nella was excluded from this trial on medical grounds.
• ^Note 13: Nigel was excluded from this trial on medical grounds.
• ^Note 14: For this Trial, each celebrity were competing for starters, main courses, desserts, drinks, and treats of their choice.

Celebrity	Number of stars earned	Percentage
Sam Thompson		85%
Tony Bellew		88%
Nigel Farage		82%
Josie Gibson		69%
Marvin Humes		72%
Danielle Harold		69%
Nick Pickard		71%
Fred Sirieix		65%
Nella Rose		71%
Frankie Dettori		40%
Jamie Lynn Spears		100%
Grace Dent		100%

As well as competing in the Bushtucker trials, celebrities have to complete in "Deals on Wheels challenges" in order to earn treats for the camp. At least two celebrities are chosen to compete in the challenge. These are often mental challenges, rather than challenges including critters. They must complete the challenge they have been given in order to win 'Dingo Dollars'.^[20]

After completion of the challenge, the celebrities will take the Dingo Dollars and purchase a snack from Kiosk Kev, who for this series was located in an ice cream van, "Kev's Wallaby Whips". Before they are allowed to take the prize, the other celebrities back at the living quarters must answer a trivia question. If they get the question right, they will earn the treat, but if they get it wrong, the celebrities will go back empty-handed.^[21][22]

  The celebrities got the question correct

  The celebrities got the question wrong

  No question was given, as the celebrities failed to complete the challenge in time.

  No question was asked

On 23 November, following the campmates' entrance to The Scarena and their subsequent participation in "Locker Shocker", the campmates were separated in to two teams with the winning five forming the "Home" team and the losing five forming the "Away" team. New arrivals Frankie and Tony entered camp and competed in a trial to determine who would coach each team. Once separated into two camps, the teams went head-to-head in play-offs to win points. At the end of the three play-offs, the "Home" team amassed the most points and were therefore awarded with a breakfast.^[23]

  The Away team won the play-off

  The Home team won the play-off

During the series, Chris Packham condemned its exploitation of animals for entertainment in an open letter as he had done previously.^[24] Prior to appearing on the series, Jamie Lynn Spears was a contestant on the thirty-second series of Dancing with the Stars two months previously, and was second to be eliminated from the competition. On 29 November, Spears withdrew from the series for "medical reasons"; however Spears ultimately got a flight back to the United States and returned for the Dancing with the Stars finale to take part in a group dance performance on 5 December, prompting some viewers to suggest that perhaps she had been contractually obliged to leave the jungle as she would not have made it back for the former show had she stayed for the duration of the latter.^[25]

Official ratings are taken from BARB, utilising the four-screen dashboard which includes viewers who watched the programme on laptops, smartphones and tablets within 7 days of the original broadcast.^[26]