The 28-year-old stopper has signed a new deal which will keep him at the Welsh outfit until 2021.
"The club has been great to me since I started," Etheridge told Cardiff's official website. "We had a fantastic year last year and it's been great to continue that and extend my deal.
"Every game is going to be a great experience - all of them. Of course, you've got Old Trafford, Stamford Bridge... I could go on and on about all of them.
"But I'm looking forward to the first game of the season, then coming back here for a full house against Newcastle. I can't wait."
Etheridge will compete for first-team football with new Cardiff signing Alex Smithies next season.