List of largest extant lizards

For example, the largest representative among Geckos, the New Caledonian giant gecko (Rhacodactylus leachianus), has a length of up to 36 cm (14 in), while the largest species in the family Varanidae, Komodo dragon (Varanus komodoensis), has a length up to 3 metres (10 ft), and a body mass of 70 kg (154 lbs).

Here are the 15 largest extant lizards based on the most reliable measurements for size, including length and weight.

These include family types Varanidae, Iguanidae and Teiidae exceeding 9 kg (20 lbs) in mass.

[178] Such massive size disparity between species makes the group ideal model animals to study the effects of gigantism on ecology and physiology, but at present little of their potential in this field has been explored.

This family includes the Komodo dragon, which is the largest of all extant lizards, with a length of 3 meters (10 ft) and approximate weight of 113 kg (249 lb).

Makassar salfin lizard is usually regarded as the largest representative of family Agamidae , reaching a length of 1.2 m (3.9 ft).
Sheltopusik from Southern Europe to Central Asia, is the largest legless lizard , reaching a length of 1.2 m (3.9 ft)
Basilisks are quite large lizards, especially the plumed basilisk
The knight anole is the largest anole, over half a meter in length
The New Caledonian giant gecko is the largest gecko, weighing up to almost 300 g (10.5 oz)
The Mexican beaded lizard is the largest species in family Helodermatidae , reaching a length of up to 91 cm (36 in)
The blue iguana is the heaviest iguanid and one of the largest extant lizards
The Galapagos land iguana is a very massive lizard weighing more than 10 kg (22 lb) and is one of the largest extant lizards
Gran Canaria giant lizard is the largest member of a family Lacertidae , exceeding a length of 80 cm (31 in)
The Solomon Islands skink – largest skink reaching the length of 81 cm (32 in)
Argentine black and white tegu as well as a red tegu , is the largest teiid and one of the heaviest lizards in the world reaching a mass of 7 kg (15 lb)
The Komodo dragon is the largest extant lizard with a maximum known mass of more 80 kg (176.3 lb), also perhaps the heaviest squamate
Asian water monitor is the second-largest lizard with a length of more 3 m (10 ft) and a mass in 25 kg (55 lb)
The crocodile monitor sometimes is considers the longest lizard in the world
The Nile monitor is the largest lizard native to Africa with a maximum reliable length of more than 2.43 m (8.0 ft) and a mass in almost 20 kg (44 lb)
The perentie is the largest lizard Australia, and also one of the biggest lizards in the world
The lace monitor – the second-largest lizard native to Australia and seven-largest lizard in the world
Bengal monitor is the second-largest lizard in Asia after Asian water monitor
The Gray's monitor along with its relatives is one of heaviest lizards in the world
The Caspian monitor is a largest lizard in Central Asia , with a maximum reliable length of 1.4 m (4.6 ft) and a mass of almost 3 kg (6.6 lb)
The Argus monitor is third largest Australian lizard with mass more 7 kg (15 lb)