Kotychi is a lagoon in the northwestern part of
Elis,
Greece. It straddles the boundaries of the municipal units
Lechaina and
Vouprasia. It is located 23 km north of
Amaliada and 45 km southwest of
Patras. The lagoon is connected with the
Ionian Sea. It is a protected wetland area, as recognized by the
Ramsar Convention, The Kotychi lagoon is an important areas for waterbirds in Greece. Its surface area is 3.7 km².