Phylogenetic tree analysis based on 18S ribosomal RNA gene partial sequence in local Cryptosporidium species from quail’s isolates that were used for genetic species typing analysis. The phylogenetic tree was constructed using the Unweighted Pair Group Method with Arithmetic Mean (UPGMA tree) in the (MEGA 6.0 version). The Cryptosporidium species quails isolates (No.2, No.3, and No.4) showed closed related to NCBI-BLAST Cryptosporidium meleagridis (HQ917077.1), and The Cryptosporidium species quails isolates (No.1 and No.5) showed closed related to NCBI-BLAST Cryptosporidium baileyi (MN410723.1) at total genetic changes (0.04-0.01%).