:Tullynacross

{{short description|Village in County Antrim, Northern Ireland}}

{{for|the townland in County Cavan|Tullynacross (Glangevlin)}}

{{Use dmy dates|date=October 2019}}

{{Infobox UK place

| official_name = Tullynacross

| irish_name = Tulaigh na Croise

| static_image = The Lambeg Bridge, Lambeg (4) - geograph.org.uk - 1973278.jpg

| static_image_alt = Close-up of three low stone and brick arches over running water.

| static_image_caption = Lambeg Bridge connects Tullynacross to Lambeg across the River Lagan.

| map_type =

| coordinates = {{coord|54.522145|-6.013952|display=inline,title}}

| label_position =

| population = 159

| population_ref = (2001 Census)

| irish_grid_reference =

| unitary_northern_ireland = Lisburn and Castlereagh

| country = Northern Ireland

|historic_county=

|post_town = LISBURN

| postcode_area = BT

| postcode_district = BT27

| dial_code = 028

| constituency_westminster = Lagan Valley

| constituency_ni_assembly = Lagan Valley

| lieutenancy_northern_ireland = County Antrim

| website =

| hide_services = yes

}}

Tullynacross ({{Irish derived place name|Tulaigh na Croise|hillock of the cross}})[http://www.placenamesni.org/resultsdetail.phtml?entry=10814 PlaceNamesNI - Tullynacross] {{webarchive|url=https://web.archive.org/web/20110717190346/http://www.placenamesni.org/resultsdetail.phtml?entry=10814 |date=2011-07-17 }} is a small village in Lisburn, County Antrim, Northern Ireland, near Lambeg. In the 2001 Census it had a population of 159 people.

It lies within the civil parish of Lambeg, the barony of Castlereagh Upper, and is situated within the Lagan Valley Regional Park. The local authority is Lisburn and Castlereagh City Council.