The 2010–11 season was the 122nd season of competitive football by Celtic. New manager Neil Lennone Celtic made considerable changes to the Celtic team for the 2010-11 season. He sold Aiden McGeady for a then Scottish record £9.5 million along with captain Stephen McManus and fan favourite Artur Boruc. 13 other players also left the club, this gave Lennon enough funds to re-build for the new season. He looked to sign talented, young, cheap, relatively unknown players, from smaller leagues around the world. This paid off with players such as Gary Hooper,Beram Kayal and Emilio Izaguirre all having excellent seasons and earning many plaudits. Lennon also signed several experienced players on free transfers. Charlie Mulgrew,Joe Ledley, and Daniel Majstorović all went into the first team. In addition to these Lennon also signed five other players, including Fraser Forster on loan from Newcastle who became first choice 'keeper and helped set a new SPL record for most clean sheets.

In July Celtic were drawn in the third qualifying round of the UEFA Champions League against Portuguese side Braga. Celtic lost the first leg of the tie 3–0 away from home. Celtic won the return leg 2–1, but went out of the Champions League 4–2 on aggregate. Celtic were knocked out of European football altogether in August, after they lost their Europa League qualifying match against FC Utrecht 4–2 on aggregate.

Celtic won their first eight league games of the SPL season, before losing to Rangers, who also had a 100% record, 3–1. Celtic started November beating Aberdeen 9–0 in an SPL record victory. They then lost to Hearts and drew at home against Dundee United and Inverness Caledonian Thistle, with a victory over St Mirren the only consolation. The Inverness match was notable because it was officiated by Luxembourg referee Alain Hamer, who had stepped in because of the Scottish football referee strike. Celtic began 2011 by beating Rangers 2–0 at Ibrox, and beat their rivals again 3–0 on 20 February. Celtic finished the season in second place in the SPL table, a point behind Rangers.

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