|Date of birth||1 February 1989|
|Place of birth||Grindavík, Iceland|
|Height||1.84 m (6 ft 1⁄2 in)|
|2007||→ Augnablik (loan)||2||(2)|
|2012||→ Helsingborg (loan)||17||(12)|
|2015–2016||→ Olympiacos (loan)||7||(3)|
|2016||→ Augsburg (loan)||14||(7)|
* Senior club appearances and goals counted for the domestic league only and correct as of 14 May 2016.
Born in Grindavík, Alfreð played for Grindavík youth teams while also spending two years of his childhood in the Scottish capital Edinburgh while his father studied in the city. Alfreð played for boys' club Hutchison Vale and became a fan of Hibernian. 
Alfreð joined Breiðablik in 2005, featuring in the club's highly successful youth team alongside future internationals and/or expatriates Gylfi Sigurðsson, Aron Jóhannsson, Jóhann Berg Guðmundsson, Elfar Freyr Helgason, Guðmundur Kristjánsson, Kristinn Steindórsson and Kristinn Jónsson.
He made his senior debut for Breiðablik in 2008. In the 2009 Úrvalsdeild season, he scored 13 goals in 18 league games for Breiðablik. At the end of the campaign, he was voted Young Player of the Year by his fellow players. Breiðablik also won their first title ever, the Icelandic Cup.
In 2010, Alfreð was joint league top goalscorer with 14 goals, and voted player of the year by fellow players as Breiðablik won their first league title and participated for the first time in the UEFA Europa League when they played against Scottish side Motherwell.
On 3 November 2010, Breiðablik confirmed that an offer for Alfreð from Belgian side Lokeren had been accepted. After completing a medical, Alfreð signed a two-and-a-half-year contract with the club on 20 November 2010.
Helsingborgs IF (loan)
Alfreð scored one goal and made five assists in a 6–1 aggregate win against Polish champions Śląsk Wrocław in the 2012–13 UEFA Champions League Third qualifying round. At the end of the loan period, Alfreð was Helsingborg's top scorer of 2012 with 12 goals in 17 all competitions matches.
On 16 August 2012, Alfreð signed a three-year contract with Dutch Eredivisie club Heerenveen after the club reached an agreement for his transfer from Lokeren. He made a promising start for his new club, scoring two goals in his home debut against top side Ajax in a 2–2 draw and later scoring all four goals away to third division side Kozakken Boys in the KNVB Cup. Alfreð ended the season as the third-highest goalscorer of the Eredivisie, scoring 24 of Heereveen's 50 league goals.
On 2 July 2014, Alfreð signed for Spanish La Liga club Real Sociedad for a €7.5 million transfer fee, rising to €10 million with add-ons. He made his debut for the club later that month, starting in a 2–0 home win against Aberdeen for the season's UEFA Europa League.
Greek champions Olympiacos had previously tried to sign the 26-year-old Icelander, but failed to reach an agreement with his former club, Heerenveen. Despite the rival interest of PAOK, on 26 July 2015, Olympiacos officially announced that they had signed him on loan from Real Sociedad. He scored his first goal in a friendly game against Beşiktaş on August 9, 2015. Alfreð scored his first competitive and the winning goal for Olympiacos against Arsenal on September 29, 2015, in their Champions League Group F clash, earning Olympiacos their first ever win on English soil, in a 3–2 win at Emirates Stadium.
He was loaned to FC Augsburg on 1 February 2016. He made his debut as a substitute against Ingolstadt five days later in a 2-1 defeat. He scored his first goal in his third appearance on 28 February, helping Augsburg to a 2-2 draw with Borussia Mönchengladbach. He would go on to score seven goals in fourteen appearances, and the loan was made permanent on 1 July 2016.
Alfreð has 11 caps and five goals for Iceland at under-21 level. His first goal came on 8 September 2009 in a 2011 UEFA European Under-21 Football Championship Group 5 qualifier 6–2 win over Northern Ireland under-21s at The Showgrounds, Coleraine, Northern Ireland.
Alfreð won his first cap for the Icelandic national team in 2010, coming on as a substitute in a friendly match against the Faroe Islands. Alfreð scored on his full debut for Iceland against Israel in a 3–2 loss at Bloomfield Statium in Tel Aviv. As of 5 September 2016, Alfreð has 38 caps and nine goals for the senior team.
- As of 5 September 2016
|1||17 November 2010||Bloomfield Stadium, Tel Aviv, Israel||Israel||1–3||2–3||Friendly|
|2||29 February 2012||Stadion Pod Goricom, Podgorica, Montenegro||Montenegro||1–1||1–2||Friendly|
|3||7 September 2012||Laugardalsvöllur, Reykjavík, Iceland||Norway||2–0||2–0||2014 FIFA World Cup qualification|
|4||7 June 2013||Laugardalsvöllur, Reykjavík, Iceland||Slovenia||2–1||2–4||2014 FIFA World Cup qualification|
|5||12 November 2014||King Baudouin Stadium, Brussels, Belgium||Belgium||1–1||1–3||Friendly|
|6||13 November 2015||Stadion Narodowy, Warsaw, Poland||Poland||2–2||2–4||Friendly|
|7||17 November 2015||Štadión Pod Dubňom, Žilina, Slovakia||Slovakia||1–0||1–3||Friendly|
|8||6 June 2016||Laugardalsvöllur, Reykjavík, Iceland||Liechtenstein||3–0||4–0||Friendly|
|9||5 September 2016||Olimpiyskiy National Sports Complex, Kiev, Ukraine||Ukraine||1–0||1–1||2018 FIFA World Cup qualification|
- As of 14 May 2016
|Club performance||League||Cup||League Cup||Continental||Total|
|Iceland||League||Icelandic Cup||League Cup||Europe||Total|
|2007||Augnablik (loan)||3. deild||2||2||-||-||-||-||-||-||2||2|
|Belgium||League||Belgian Cup||League Cup||Europe||Total|
|2010–11||Lokeren||Belgian Pro League||15||3||-||-||-||-||-||-||15||3|
|2011–12||Lokeren||Belgian Pro League||7||1||3||2||-||-||-||-||10||3|
|Sweden||League||Svenska Cupen||League Cup||Europe||Total|
|Netherlands||League||KNVB Cup||League Cup||Europe||Total|
|Spain||League||Copa del Rey||League Cup||Europe||Total|
|2014–15||Real Sociedad||La Liga||23||2||2||2||-||-||2||0||27||4|
|Greece||League||Greek Football Cup||—||Europe||Total|
1Includes two Europe play-off matches.
- Icelandic Premier League: Player of the Year: 2010
- Icelandic Premier League: Young Player of the Year: 2009
- Icelandic Premier League Silver Boot: 2010
- Icelandic Premier League Bronze Boot: 2009
- Icelandic Premier League Team of the Year: 2009, 2010
On 19 April 2013, Alfreð set a record for the most goals scored in a season by an Icelandic footballer playing in a top division in any country after he scored his 24th goal of the season, and also his last of the season. The previous record-holder had also played in the Netherlands, Pétur Pétursson, who scored 23 goals in 33 matches for Feyenoord in the 1979–80 Eredivisie.
- "Statistieken Aanval" (in Dutch). Eredivisie.de. Retrieved 26 May 2014.
- "Ronaldo and Suárez share Golden Shoe accolade". Uefa.com. Retrieved 26 May 2014.
- Friel, David (7 October 2010). "Icelandic Hibernian fan Alfreð Finnbogason cannot wait to face former homeland". The Herald. Retrieved 7 October 2010.
- "Félag: Breiðablik, Mót: Íslandsmót – 3. flokkur karla A deild" (in Icelandic). ksi.is. Retrieved 12 August 2012.
- "Félag: Breiðablik, Mót: Íslandsmót – 3. flokkur karla B lið A riðill" (in Icelandic). ksi.is. Retrieved 3 October 2012.
- Breiðfjörð, Hafliði (5 October 2009). "Lokahóf KSÍ: Atli Guðnason og Katrín Jónsdóttir best" (in Icelandic). fotbolti,net. Retrieved 13 November 2009.
- "Breiðablik bikarmeistari karla í fyrsta sinn" (in Icelandic). visir.is. Retrieved 21 August 2013.
- "Enska liðið Blackpool vill fá að skoða Alfreð" (in Icelandic). visir.is. 12 November 2009. Retrieved 13 November 2009.
- "Dóra María og Alfreð kosin best" (in Icelandic). ksi.is. Retrieved 21 August 2013.
- "Breiðablik mætir Motherwell" (in Icelandic). mbl.is. Retrieved 21 August 2013.
- "Breiðablik Íslandsmeistari 2010" (in Icelandic). visir.is. Retrieved 21 August 2013.
- "Alfreð Finnbogason til Lokeren" (in Icelandic). fotbolti.net. 3 November 2010. Retrieved 22 November 2010.
- "Alfreð Finnbogason í Lokeren (Staðfest)" (in Icelandic). fotbolti.net. 20 November 2010. Retrieved 22 November 2010.
- "Isländsk stjärna förstärker HIF" (in Swedish). hd.se. 6 March 2012. Retrieved 6 March 2012.
- "Hattrick av Sörum – HIF vidare i CL-kvalet" (in Swedish). hif.se. 8 August 2012. Retrieved 10 August 2012.
- "Alfreð skoraði tvö í stórsigri" (in Icelandic). 433.is. Retrieved 21 August 2013.
- "Alfreð samdi við Heerenveen til þriggja ára" (in Icelandic). mbl.is. Retrieved 21 August 2013.
- "sc Heerenveen trekt IJslandse spits Finnbogason aan" (in Dutch). sc-heerenveen.nl. 16 August 2012. Retrieved 17 August 2012.
- Kozakken Boys – sc Heerenveen – sc Heerenveen
- "Alfreð tók bronsskóinn í Hollandi" (in Icelandic). 433.is. Retrieved 21 August 2013.
- Finnbogason naar Real Sociedad (Finnbogason to Real Sociedad); Heerenveen's official website, 2 July 2014 (Dutch)
- Agreement with SC Heerenveen for the transfer of Alfred Finnbogason; Real Sociedad's official website, 2 July 2014
- Real Sociedad 2–0 Aberdeen; UEFA.com, 31 July 2014
- Olympiacos targeting Finnbogason; sdna.com, 24 July 2015
- Olympiacos complete deal for Finnbogason; sdna.com, 26 July 2015
- "Πανθρακικός - Ολυμπιακός 3-4". www.contra.gr. 5 December 2015.
- "Finnbogason kommt" [Finnbogason arrives] (in German). FC Augsburg. 1 February 2016. Retrieved 1 February 2016.
- "Northern Ireland 2 – 6 Iceland". UEFA. 8 September 2009. Archived from the original on 17 January 2010. Retrieved 14 November 2009.
- "Alfreð Finnbogason" (in Icelandic). ksi.is. Retrieved 12 November 2014.
- "Leikskýrsla – A karla – VL 2010 – Ísland – Færeyjar 2–0" (in Icelandic). ksi.is. Retrieved 21 August 2013.
- "Leikskýrsla – A karla – VL 2010 – Ísrael – Ísland 3–2" (in Icelandic). ksi.is. Retrieved 21 August 2013.
- "A karla – Lokahópur fyrir EM 2016" (in Icelandic). Knattspyrnusamband Íslands. 9 May 2016. Retrieved 10 May 2016.
- Iceland – A. Finnbogason – Profile with news, career statistics and history – Soccerway
- "Lokeren kaupir Alfreð Finnbogason" (in Icelandic). mbl.is. Retrieved 21 August 2013.
- "Katrín og Atli valin bestu leikmennirnir" (in Icelandic). ksi.is. Retrieved 21 August 2013.
- "Alfreð Finnbogason skoraði á móti U-17 ára liði Ítala" (in Icelandic). fotbolti.net. Retrieved 21 August 2013.
- Ásgeirsson, Eiríkur Stefán (19 April 2013). "Alfreð bætti met Péturs" (in Icelandic). visir.is. Retrieved 20 April 2013.