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The complete mitochondrial genome of Marsh Sandpiper Tringa stagnatilis was sequenced in this study. The circular mitogenome was 16,799 bp in length, which contained 13 protein-coding genes, two ribosomal RNAs (12S rRNA and 16S rRNA), 22 transfer RNA genes, and a D-loop region. The overall nucleotide composition was A: 31.51%, T: 25.45%, C: 29.51%, and G: 13.53%. Twenty-eight genes were encoded on the heavy strand, and the remaining nine genes were encoded on the light strand. The common start codon was ATG, and four stop codons and an incomplete stop codon (T-) were used in PCGs. This study improves our understanding of the mitogenomic characteristics and its phylogenetic relationships within Charadriiformes.