Equivalent of UTF8_UNICODE_CI collation in PostgreSQL

I would like a column in a table inside a PostgreSQL database (I am using version 9.6). I know of the UTF8_UNICODE_CI collation on MySQL, so I tried: CREATE TABLE thing ( id BIGINT PRIMARY KEY ,name VARCHAR(120) NOT NULL COLLATE "UTF8_UNICODE_CI" ); but I get: > ERROR: collation "UTF8_UNICODE_CI" for encoding "UTF8" does not exist Reading around, I found that the pg_collation table displays collations, which showed: =# SELECT * from pg_collation; collname | collnamespace | collowner | collencoding | collcollate | collctype ----------+---------------+-----------+--------------+-------------+----------- default | 11 | 10 | -1 | | C | 11 | 10 | -1 | C | C POSIX | 11 | 10 | -1 | POSIX | POSIX (3 rows) So it's clearly not there... Is there any way to add it, or obtain the behavior I want? (I want a search WHERE name LIKE '%lala%' to match 'lalá', 'LÂLÄ', etc.)