Name of fifth meru parvat

According to Jain cosmology, there are many Meru (or Sumeru) mountains described, especially in the context of Jambudvipa and the arrangement of continents and oceans. Specifically, Jain scriptures mention five Meru mountains in relation to the Pushkarvardvipa, a continent in the middle world (Madhyaloka).

The names of the five Meru (Sumeru) mountains are:

1. Vaitadhya Meru
2. Kukubha Meru
3. Shikhar Meru
4. Ruchaka Meru
5. Mandara Meru

So, the name of the fifth Meru Parvat is: Mandara Meru (मन्दर मेरु).

If you are referring to another context or layer, please specify, as Jain cosmology can be very detailed and layered.