Ha
The taxon authority Ha may refer to:
- Dongsoo Ha, Korean acarologist
- Duy Ngo Ha (fl. 2018), Vietnamese parasitologist
- Hong Bich Ha (fl. 2023), Vietnamese herpetologist
- Nghia Van Ha (fl. 2019), Vietnamese zoologist
- Ngoan Van Ha (fl. 2019), Vietnamese zoologist
- Ngoc Linh Ha (fl. 2022), Vietnamese entomologist
- Thi Dung Ha (fl. 1970; Ha), Vietnamese botanist
- Tran Manh Ha (fl. 2015), Vietnamese carcinologist