Ischyja marapokis a moth species from the genusIschyja,a member of the Lepidoptera family, Erebidae. Due to their wide variation, this family constitutes the largest described species, however, the mitogenome dataset on the genusIschyjais scarce. Hence, the mitochondrial genome dataset ofIschyja marapokfrom Malaysia was completely sequenced using the next-generation sequencing technology, Illumina NovaSeq 6000 and analyzed. The mitogenome has a sequence length of 15,421 bp, consisting of 13 protein-coding genes (PCGs), 22 transfer RNAs (tRNAs), 2 ribosomal RNAs (rRNAs) and a control region. The mitogenome isA+Tbiased (80.6%), with the base composition of A (39.2%), T (41.4%), C (11.9%) and G (7.5%). Among the 13 PCGs, 12 were initiated by the standard ATN codon, except for COX1 which utilizes the CGA start codon. Two PCGs were terminated with an incomplete stop codon T, while others ended with a TAA codon. Phylogenetic tree analyses showed that the sequencedI. marapokresides within the Erebinae subfamily and is closely related toIschyja manlia(MW664367) with high bootstrap support and posterior probabilities. This dataset presented the mitogenome data ofI. marapokfrom Malaysia, which is valuable for further research of their phylogeny and the diversification of theIschyjagenus. Also, this dataset can be implemented and used as references to assess environmental changes in the terrestrial ecosystem via environmental DNA approaches. The mitogenome ofI. marapokis available in GenBank under the accession number ON165249.