How do you pronounce "triathlon"?

In American English: /ˌtraɪˈæθlən/ (treye-ATHL-uhn). In British English: /tɹaɪˈæθlɒn/ (treye-ATHL-on). In Canadian English: /ˌtraɪˈæθlən/ (treye-ATHL-uhn). In Australian English: /tɹˈaɪaθlən/ (TR-eye).

Is "triathlon" pronounced differently in American and British English?

Yes. In American English it's pronounced /ˌtraɪˈæθlən/ (treye-ATHL-uhn), while in British English it's /tɹaɪˈæθlɒn/ (treye-ATHL-on).

How to Pronounce "triathlon"

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triathlon

regional

/ˌtraɪˈæθlən/

treye-ATHL-uhn

Syllable Breakdown

traɪtria·æθlth·ənlon

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14