Felix the Huddersfield Railway Station Cat (UK), @FelixhuddsCat is the Senior Pest Controller at Huddersfield Railway Station working for Transpennine Express Trains in West Yorkshire, UK 
Snowy the Harringay Station Cat (UK), @HarringayCat is the customer services and hospitality manager (freelance) at Harringay Station in North London. Official mascot for Harringay Choppers, ambassador for Quernmore Rd Project and has a consultancy role with Harringey Council
Cat Shepherd (Ireland), Real name Bodacious @1CatShepherd is a hard working, professional cat in charge of a flock of Zwartbles sheep by the banks of the River Nore in County Kilkenny. 
Tara (USA), a family cat from Bakersfield, California who saved a four-year-old boy from a dog attack in 2014, and became a "viral Internet sensation" when household surveillance footage was published.
Tatiana Angela Lansbury Romanov, cat of Alexandra Silber and star of the @ifeelkitty Instagram account, a collection of portraits featuring musical theatre captions.
Zoe the Cat, PhD, was a cat accredited by the American Psychotherapy Association, as part of a commentary about the state of accreditation within the industry by Dr. Steve Eichel.
Bob, a ginger cat that was found injured and subsequently adopted by London busker, James Bowen, in 2007. Bob's and Bowen's adventures together on the streets of London became the subject of a book, published in March 2012, A Street Cat Named Bob: How One Man And His Cat Found Hope On The Streets.
Pangur Bán, the cat who inspired an otherwise unknown 8th (or 9th) century Irish monk to write a poem cataloguing their similarities.
Sassy, Siamese or Himalayan, the feline star of the true-life Canadian adventure story, "Incredible Journey" (1963); later remade into "Homeward Bound: the Incredible Voyage" (1993) with Sally Field voicing the character of Sassy.
Thomasina, female tabby cat and subject of Paul Gallico's book, "Thomasina" which was made into the movie, "The Three Lives of Thomasina" by Walt Disney Studios (1964).
Blackie, a cat that inherited 15 million British Pounds and thus became the richest cat in history.
Colonel Meow, a Himalayan-Persian mix who became famous on social media websites for his extremely long fur and scowling face. As of 2014, he holds the Guinness world record for longest hair on a cat (nine inches). Died 2014.
Creme Puff, the world's oldest cat (1967–2005). Owned by Jake Perry.
Heed, a cat considered by Guinness Book of World Records as potentially one of the world's smallest.
Himmy from Cairns, Australia the fattest cat on record who weighed 21.3 kg (46.8 lbs) at his death in 1986.
Towser "The Mouser" (1963 - 1987) of Glenturret Distillery in Crieff, Scotland, holds the Guinness World Record for the most mice caught (28,899).
Félicette, the first cat ever launched into space by the French Centre d'Enseignement et de Recherches de Médecine Aéronautique (CERMA). Félicette was recovered alive after a 15-minute flight and a descent by parachute. Félicette had electrodes implanted into her brain, and the recorded neural impulses were transmitted back to Earth.
Simon of the HMS Amethyst, celebrated ship's cat of HMS 'Amethyst'. In addition to being presented with multiple medals, he was the only cat to have won the PDSA's Dickin Medal, for his rat-catching and morale-boosting activities during the Yangtse Incident in 1949. He also received the rank of "Able Seacat".
Cherry Pop,"Jovan Cherry Pop of Mystichill", (1981–1995) was a pedigree Champion Persian who became the poster cat for the Broward Country Humane Society. Money raised from Cherry Pop merchandise, events, and parties were donated to the Humane Society and other shelters, assisting in bringing attention to pet adoption for animals in need.
Hamish McHamish (1999–11 September 2014), a long-haired ginger cat that was adopted by the citizens of the town of St Andrews, Fife, Scotland and has had a statue built in his honour. Something of a local feline celebrity with tourists and students, he became famous after the publication of a book titled "Hamish McHamish: Cool Cat About Town". In 2013, a bronze statue was crowd funded in his honour, unveiled in April 2014.
Tama, (29 April 1999 - June 22, 2015) A Super Station Master of Kishi Station is known to be the most profitable cat in the world, with earning total up to US$ 10 million for her 8 years career as Station Master single-handedly.
Artful Dodger, a cat in the U.K. who regularly catches the cross-town bus
Bart, also known as zombie cat, a cat who survived a traffic accident, was unintentionally buried alive, and clawed its way out of the grave.
Blackie the Talking Cat, a "talking" cat who was exhibited (for donations) by an unemployed couple on the streets of Augusta, Georgia. Blackie became the subject of a court case, Miles v. City Council of Augusta.
Chase No Face, a cat who lost her face in an accident, and is now a therapy cat for people with disfigurements.
CC (Copy Cat, or Carbon Cat), the first cloned cat.
Emily, an American cat who, after being lost, was found to have gone to France.
Faith, a London cat that took up residence in St Faith & St Augustine's church (by St Paul's Cathedral) in wartime, and received a PDSA Silver Medal for her bravery in caring for her kitten when the church was bombed.
Macavity, the busdrivers' nickname of a British cat, white with different-coloured eyes, known for regularly catching the local bus by himself.
Marzipan (c.1992–2013), a calico cat who lived in the lobby of Astor Theatre in Melbourne, Australia. She was the theatre's unofficial mascot and was often seen sitting on the couches, waiting for the patrons to pat her as they left the cinema. She was also known to stroll in the cinema and watch the movies, or simply wander down the aisle and sit on patrons' laps. She had her own Facebook fan page.
Nora, a gray tabby cat who plays the piano alongside her owner.
Oscar, a cat fitted with bionic hind legs following an accident in 2009.
Oscar the hospice cat, written up in the New England Journal of Medicine for his uncanny ability to predict which patients will die by curling up to sleep with them hours before their death. To date he has been right 25 times.
Room 8, a tomcat who appeared at Elysian Heights Elementary School in Echo Park, California at the start of the school year in 1952, returning every day thereafter, before disappearing for the summer, only to return the following September. This behavior continued into the mid-1960s. (Ref. Los Angeles Times)
Rusik, the Russian police sniffer cat on Stavropol, who died in the line of duty fighting against illegal endangered sturgeon fish traffic in 2003.
Scarlett, who in 1996 saved her kittens one by one from a fire in Brooklyn NY, suffering horrible burns in the process. Named Scarlett by the fireman who rescued her. She became a famous example of the power of a mother's love.
Senator Capitol Kitty, a resident of Capitol Park in Sacramento, CA and star of Sharon Davis's book "The Adventures of Capitol Kitty"
Sissi the Red Cat, an Italian cat who achieved celebrity by correctly picking the results of the 2014 World Cup matches in Brazil.
Tibs the Great (November 1950 – December 1964) was the British Post Office's "number one cat" and kept the post office headquarters completely mouse-free during his 14 years of service.
Tiddles, tabby resident of the Ladies' toilet at Paddington Station, London. Thousands of passengers met her and their donations fed her – unfortunately too generously, for her death in 1983 was mainly due to overeating (she weighed in at 32 lb).
Willow, a cat lost from a Boulder, Colorado home, who was discovered 5 years later and 1,800 miles away in New York City. She survived owls, coyotes, criminals, and Manhattan traffic. She was reunited with her owners with the help of her microchip.
Winnie, who awakened a New Castle, Indiana family in April 2007 at 1 a.m. after detecting carbon monoxide in their home, saving the family's lives.
Tabby and Dixie, Abraham Lincoln's cats. Lincoln once remarked that Dixie "is smarter than my whole cabinet."
Tiger and Blacky, US President Calvin Coolidge's cats when he and his family lived in the White House. Coolidge was known for hiding the cats about the house, prior to and during his presidency, leaving his wife, Grace Coolidge, to find and rescue them.
Tom Kitten, US President John F. Kennedy's cat, and one of the 15 pets of the Kennedy family.
Baggage, a cat owned by British television presenter Gok Wan. Baggage was the inspiration for Gok's TV series 'Baggage', first broadcast in the UK on the 21st of September 2012. Has a limited following on Twitter and a fanpage on Facebook.
F.D.C. Willard, the pen name of Chester, the cat of Jack H. Hetherington, who listed the cat as co-author of several physics papers from 1975 to 1980
Foss, belonging to Edward Lear; subject of many drawings, some published in The Heraldic Blazon of Foss the Cat; inspired The Owl & the Pussycat; Lear buried Foss in his garden and died himself only two months later
Jeoffry, the visionary poet Christopher Smart's cat, who is praised as "surpassing in beauty" in his owner's poem Jubilate Agno (A Poem from Bedlam). (Jeoffry was Smart's only companion during his confinement in an asylum in 1762–63.) The Jeoffry extract is set as a treble solo in the festival cantata, Rejoice in the Lamb Op 30, by Benjamin Britten.
Logos, the cat of Jacques Derrida. Mentioned in Plato's Pharmacy: "Logos, a living, animate creature, is thus also an organism that has been engendered. An organism: a differentiated body proper, with a center and extremities, joints, a head, and feet."
Lion, a cat who belonged to guitarist John Fahey, who later wrote a song about Lion called "Lion" in tribute.
Mademoiselle Fifi, (aka Paree) the beloved pet cat of aviator John Moisant. Fifi often accompanied Moisant on his flights, and on August 23, 1910 Mademoiselle Fifi became the first cat to fly across the English Channel during the first aeroplane flight from London-to-Paris. Moisant was killed at New Orleans in December 1910, and a famous photo was published of Fifi attending Moisant's funeral, draped in mourningcover.