“I think so,” said the Frenchman when asked if Williams is the only team for which he may drive in the 2019 F1 season.
Furthermore, he would choose to stay on the sidelines rather than spending a year in another series.
“For sure it could be an option to be on the bench next year,” explained Ocon.
“But even if that is the case, I will be back in 2020, and I will be back stronger and prepared.
“I am not interested,” he said of IndyCar.
“I am interested in F1, and that is the only thing I want to do. That is my only focus.
“I like racing, I like cars and I think it is a great series.
“But the only thing I look at is F1, it is my only target and my only target is to be world champion one day, and there is nothing else that counts really.
“Looking at Robert (Wickens), it breaks you a bit from that, but even if that was not the case I would not look at IndyCar.”
Additionally, Racing Point Force India is 25 points clear of last-placed Williams in the constructors' championship despite having to start from zero when it was rescued from bankruptcy three rounds ago.
The 22-year-old is nevertheless optimistic about the prospect of racing for the Grove squad.
“There are talks with Williams obviously,” he confirmed.
“The talks are there, but I cannot say it will be a downgrade.
“Williams is a great team, they have been world champion in the past and they have been fighting with us hard last year.
“They have tough times, but all teams have tough times.”
Ocon did concede that should nothing materialise for 2019 or 2020, he would have to look at a fallback option.
“If I am told I am not racing in the next couple of years in F1, then I need to leave, I need to work.
“But what I am trying to do is, if I am not racing in F1 next year, to come back in 2020.
“I feel like there is nothing for me to learn away from F1.”
The Russian Grand Prix weekend starts with Practice 1 tonight at 1800 AEST.