In Airavat Kshetra (of Jambudweep), like in Bharat Kshetra, there are always 24 Tirthankars in every half time‑cycle (chovisi).

Among the many Tirthankars who appear there, two special “śāśvat Jin” names are always found in every avasarpini and utsarpini:

1. Chandranan (Chandraprabha–like name) – as the first Tirthankar of Airavat Kshetra in that cycle.
2. Varisen (Varishen) – as the last (24th) Tirthankar of Airavat Kshetra in that cycle.

So, if your question is “Airavat Kshetra Tirthankar name?” in the sense of the especially known or fixed names, the traditionally mentioned pair is:

• Pratham (1st) Tirthankar: Bhagwan Chandranan
• Chovisi no antim (24th) Tirthankar: Bhagwan Varisen

These two names repeat in every past, present and future cycle in Airavat Kshetra.