The 1989–90 Sri Lankan cricket season was dominated by Sinhalese Sports Club who won both the country's major trophies.
Honours Lakspray Trophy – Sinhalese Sports Club Brown's Trophy – Sinhalese Sports Club Most runs – WAA Wasantha 519 @ 57.66 (HS 134) Most wickets – KPJ Warnaweera 71 @ 13.47 (BB 7–16)
Test series Sri Lanka played no home Test matches this season.
External sources CricInfo – brief history of Sri Lankan cricket CricketArchive – Tournaments in Sri Lanka
Further reading Wisden Cricketers' Almanack 1991