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In all the world, ไชยธงยศ (ไชยธงยศ ) is an extremely rare unknown gender forename. Much more frequently, ไชยธงยศ is the last name as well as the forename.
พนมศักดิ์, ปิยวุฒิ, สมุทรชัย, ชาญฤทธิ์, and พิมลรัตน์