Trzeciewiec

{{Infobox settlement

| name = Trzeciewiec

| settlement_type = Village

| total_type =  

| image_flag =

| image_shield =

| image_map =

| subdivision_type = Country

| subdivision_name = {{POL}}

| subdivision_type1 = Voivodeship

| subdivision_name1 = Kuyavian-Pomeranian

| subdivision_type2 = County

| subdivision_name2 = Bydgoszcz

| subdivision_type3 = Gmina

| subdivision_name3 = Dobrcz

| coordinates = {{coord|53|16|N|18|12|E|region:PL|display=title,inline}}

| pushpin_map = Poland

| elevation_m =

| population_total = 520

| website =

}}

Trzeciewiec {{IPAc-pl|t|sz|e|'|ć|e|w|j|e|c}} is a village in the administrative district of Gmina Dobrcz, within Bydgoszcz County, Kuyavian-Pomeranian Voivodeship, in north-central Poland.{{TERYT}} It lies {{convert|4|km|mi|0}} east of Dobrcz and {{convert|22|km|mi|0|abbr=on}} north-east of Bydgoszcz.

Near Trzeciewiec, there is a 320 metres tall mast for FM-/TV-broadcasting, which was built in 1962.