Takydromus hani, also known commonly as the green grass lizard, the southeast Asian green grass lizard, and the Vietnamese green grass lizard, is a species of lizard in the family Lacertidae. The species is endemic to Vietnam.
The specific name, hani, is in honor of Taiwanese architect Pao-the Han, who was the first Director of the National Museum of Natural Science in Taiwan.
The preferred natural habitat of T. hani is forest, at altitudes of .
T. hani has the following characteristics: a single postnasal scale, 4 pairs of chin shields, 6 longitudinal rows of dorsal scales between the hind legs, no enlarged scales on sides of body, 8 rows of keeled ventral scales, 7 femoral pores on each side.
T. hani is oviparous.