Radovan Trefný

{{short description|Sloav ice hockey defenceman}}

{{Infobox ice hockey player

| image =

| caption =

| image_size =

| alt =

| birth_date = {{birth date and age|1987|9|20|mf=y}}

| birth_place = Trenčín, Czechoslovakia

| death_date =

| death_place =

| height_ft = 6

| height_in = 2

| weight_lb = 187

| position = Defence

| shoots = Left

| team =

| league =

| played_for = HK Dukla Trenčín
HK Nitra
Lions de Lyon
ŠHK 37 Piešťany

| ntl_team =

| draft =

| draft_year =

| draft_team =

| career_start = 2005

| career_end = 2018

}}

Radovan Trefný (born September 20, 1987) is a Slovak former professional ice hockey defenceman.

Trefný played 234 regular season games in the Tipsport Liga for HK Dukla Trenčín, HK Nitra and ŠHK 37 Piešťany. He also played in the Ligue Magnus for Lions de Lyon during the 2014–15 season before returning to Dukla Trenčín on May 25, 2015.[https://hokej.spravy.sk/clanok/2131703-po-drgonovi-ziskala-dukla-trencin-do-defenzivy-aj-radovana-trefneho/ Po Drgoňovi získala Dukla Trenčín do defenzívy aj Radovana Trefného] {{in lang|sk}} He returned to France the following year with Dogs de Cholet of the FFHG Division 1.