How old is or was the oldest cat in the world?

Per The Guinness Book of Records:
A tabby named Puss, owned by Mrs. T. Holway of Clyhidon, Great Britain, reportedly celebrated his 36th birthday on Nov 28, 1939 and died the next day, but conclusive evidence is lacking. The oldest reliably recorded cat was the female tabby Ma, owned by Alice St. George Moore of Drewsteignton, Great Britain. This cat was put to sleep on Nov 5, 1957 at the age of 34. The average life expectancy of cats is 13-17 years.

https://www.petsradar.com/advice/oldest-cats-ever

See number 3.

The average life expectancy of an indoor cat is between 9 to 15 years. According to the Guinness Book of Records, the oldest living cat is a Burmese called Kataleena Lady who lives in Melbourne, Australia. Kataleena Lady was born on March 11th, 1977.

The oldest living cat is Creme Puff of Austin Texas. Born on August 3rd 1967, Creme Puff celebrated her 38th birthday in August 2005.

Also deserving a mention are: Puss, who was born in 1903. Puss was owned by Mrs T. Holway of Devon. Puss passed away on 29th November, 1939, one day after his 36th birthday. The second is Granpa who lived to the ripe old age of 34. Granpa Rexs Allen (Granpa for short) was a Sphyx adopted from the Humane Society in Texas .


cat-world.com.au/CatRecords.htm no longer exists

Good genetics, good general care, good health care, good diet and a safe environment are all important in longevity of your cat. Domestic neutered cats usually live up to 14 years and wild cats 6-8 years.

In 1972 a Scotsman in Dumfriesshire claimed that his cat had celebrated his 43rd birthday, but when approached to verify his claim the Scotsman said that the cat had just been run over by a train.

To be a Guinness world record, the owners need to provide proof of their cat's age. E.g., continuous veterinary care over his lifetime.

http://www.messybeast.com/longevity.htm

According to the Guinness Book of World Records, the oldest cat ever verified was Creme Puff, who lived to be 37 years old.

http://www.messybeast.com/longevity.htm

Update. The oldest cat ever documented by the Guinness Book of World Records is Creme Puff, of Austin, Texas, who lived from August 3, 1967 until August 6, 2005 – three days after her 38th birthday.


link no longer exists:
blogs.catster.com/the-cats-meow-a-cat-and-kitten-blog/worlds-oldest-cat-title-up-for-grabs/2009/05/13/

This week, Guinness World Records has confirmed that Corduroy is the Oldest cat living after he recently turned 26 years old - an impressive age considering domesticated cats have an average lifespan of 15 years.
http://www.guinnessworldrecords.com/news/2015/8/spotlight-corduroy-is-crowned-the-oldest-living-cat-391829

The oldest cat ever is Creme Puff who was born on 3 August 1967 and lived until 6 August 2005 - an amazing 38 years and 3 days! Creme Puff lived with her owner, Jake Perry, in Austin, Texas, USA.
http://www.guinnessworldrecords.com/world-records/oldest-cat-ever

As cats have relatively short lives, the answer to the world's oldest (living) cat is going to change frequently. For example, a cat named Scooter overtook Corduroy (mentioned above) but died soon after.
http://www.dailymail.co.uk/news/article-3590434/World-s-oldest-living-cat-Scooter-revealed-Guinness-World-Record-holder-week-died-age-30.html

An article from this past December suggests that Corduroy is likely dead after having run off at such an old age, and I cannot at the moment find who is currently recognized as the oldest cat.
http://www.nydailynews.com/news/national/corduroy-world-oldest-living-cat-missing-feared-dead-article-1.2894461