Pokémon Moon

You can find Duosion in Pokémon Moon at Route 16 at level 33.

Where	How	Levels	Rate
Route 16	Fixed encounter	33	Fixed

Pokémon Sun

You can find Duosion in Pokémon Sun at Route 16 at level 33.

Where	How	Levels	Rate
Route 16	Fixed encounter	33	Fixed

Pokémon White

You can find Duosion in Pokémon White at Route 9 at levels 31 to 39.

Where	How	Levels	Rate
Route 9	Walk, Dark grass	31-39	30%

Pokémon White 2

You can find Duosion in Pokémon White 2 at Route 9 and Strange House at levels 33 to 43.

Where	How	Levels	Rate
Route 9	Walk, Dark grass	37-43	25%
Strange House	Walk	33-34	5%

Pokémon Shield

You can find Duosion in Pokémon Shield at Dusty Bowl at levels 42 to 47.

Where	How	Levels	Rate
Dusty Bowl : z_wr0132_ground	Walk	42-47	10%

Pokémon X

You can find Duosion in Pokémon X at Friend Safari at level 30.

Where	How	Levels	Rate
Friend Safari	Friend safari	30	NaN%

Pokémon Y

You can find Duosion in Pokémon Y at Friend Safari at level 30.

Where	How	Levels	Rate
Friend Safari	Friend safari	30	NaN%

Shield: The Crown Tundra

You can find Duosion in Shield: The Crown Tundra at Slippery Slope and Frostpoint Field at levels 60 to 65.

Where	How	Levels	Rate
Slippery Slope : z_wr0301_ground	Walk	60-65	10%
Frostpoint Field : z_wr0303_ground	Walk	60-65	10%

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