Japan and Singapore have been neck and neck on the index since they both climbed to 1st place in February, pushing Germany down to second place for the first time since 2014.
Third place is shared by Germany, France and South Korea, which all have visa-free and visa-on-arrival access to 188 countries.
With neither having gained entry to any new jurisdictions this year, it seems unlikely that either will soon reclaim the No.1 spot they held in 2015.
Afghanistan's and Iraq's passports were the weakest in the October survey, with accessibility to 30 destinations each.
Henley highlighted at least two countries that didn't rank high but saw tremendous leaps in rankings through the years - China and the UAE.
Global citizenship and residence advisory firm Henley & Partners has officially revealed that Japan wields the single most powerful passport in the entire world, allowing its citizens visa-free or visa-on-arrival travel to 190 destinations.
Looking at the number of countries giving a visa waiver, Taiwan comes in at No.29, with Japan crowning the list.
The Henley Passport Index, according to its website, is a ranking of all the passports of the world according to the number of countries their holders can travel to visa-free.
Taiwan moved up from No. 31 from a year ago to No. 29, as the countries it has visa-free and visa-on-arrival access to has increased from 134 to 148. The same is true of China: Chinese nationals obtained access to two new jurisdictions (St. Lucia and Myanmar), but the Chinese passport fell two places, to 71st overall.
The UAE has made the most remarkable ascent on the Henley Passport Index, from 62nd place in 2006 to 21st place worldwide now.
Christian H. Kälin, Group Chairman of Henley & Partners, commented in a statement on "the extraordinary results that states can achieve when they work hand in hand with their global peers to build a more interconnected and collaborative world".
Newcomer Moldova, which is due to launch its CBI program in November, has climbed 20 places since 2008.